| Base | Representation |
|---|---|
| bin | 10111110110110… |
| … | …111011100111000 |
| 3 | 1000220011020221200 |
| 4 | 113312313130320 |
| 5 | 1304431240442 |
| 6 | 103414534200 |
| 7 | 12630100326 |
| oct | 2766673470 |
| 9 | 1026136850 |
| 10 | 400258872 |
| 11 | 195a32462 |
| 12 | b2067360 |
| 13 | 64c02390 |
| 14 | 3b230d16 |
| 15 | 2521534c |
| hex | 17db7738 |
400258872 has 96 divisors (see below), whose sum is σ = 1182417600. Its totient is φ = 121575168.
The previous prime is 400258867. The next prime is 400258877. The reversal of 400258872 is 278852004.
It is a happy number.
400258872 is a `hidden beast` number, since 4 + 0 + 0 + 2 + 588 + 72 = 666.
It is an interprime number because it is at equal distance from previous prime (400258867) and next prime (400258877).
It is a super-2 number, since 2×4002588722 = 320414329229424768, 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 (400258877) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71238 + ... + 76650.
It is an arithmetic number, because the mean of its divisors is an integer number (12316850).
Almost surely, 2400258872 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 400258872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591208800).
400258872 is an abundant number, since it is smaller than the sum of its proper divisors (782158728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
400258872 is a wasteful number, since it uses less digits than its factorization.
400258872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5517 (or 5510 counting only the distinct ones).
The product of its (nonzero) digits is 35840, while the sum is 36.
The square root of 400258872 is about 20006.4707532338. The cubic root of 400258872 is about 736.9652142179.
The spelling of 400258872 in words is "four hundred million, two hundred fifty-eight thousand, eight hundred seventy-two".
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