| Base | Representation |
|---|---|
| bin | 10111111100001… |
| … | …001010011111100 |
| 3 | 1000222202120021100 |
| 4 | 113330021103330 |
| 5 | 1310310031443 |
| 6 | 103504333100 |
| 7 | 12644623053 |
| oct | 2774112374 |
| 9 | 1028676240 |
| 10 | 401642748 |
| 11 | 196798161 |
| 12 | b2614190 |
| 13 | 65298240 |
| 14 | 3b4b139a |
| 15 | 253da3d3 |
| hex | 17f094fc |
401642748 has 144 divisors (see below), whose sum is σ = 1219065120. Its totient is φ = 110149632.
The previous prime is 401642743. The next prime is 401642753. The reversal of 401642748 is 847246104.
401642748 is a `hidden beast` number, since 4 + 0 + 1 + 642 + 7 + 4 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (401642743) and next prime (401642753).
It is a super-2 number, since 2×4016427482 = 322633794041983008, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (401642741) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149836 + ... + 152492.
It is an arithmetic number, because the mean of its divisors is an integer number (8465730).
Almost surely, 2401642748 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 401642748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609532560).
401642748 is an abundant number, since it is smaller than the sum of its proper divisors (817422372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
401642748 is a wasteful number, since it uses less digits than its factorization.
401642748 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2716 (or 2711 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 36.
The square root of 401642748 is about 20041.0266204104. The cubic root of 401642748 is about 737.8135779598.
It can be divided in two parts, 4016 and 42748, that added together give a palindrome (46764).
The spelling of 401642748 in words is "four hundred one million, six hundred forty-two thousand, seven hundred forty-eight".
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