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400320041 = 11201718043
BaseRepresentation
bin10111110111000…
…110011000101001
31000220021100212012
4113313012120221
51304440220131
6103420125305
712630443552
oct2767063051
91026240765
10400320041
11195a74410
12b2096835
1364c24184
143b249329
152522852b
hex17dc6629

400320041 has 8 divisors (see below), whose sum is σ = 436953504. Its totient is φ = 363726720.

The previous prime is 400320017. The next prime is 400320047. The reversal of 400320041 is 140023004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400320041 - 26 = 400319977 is a prime.

It is a super-2 number, since 2×4003200412 = 320512270452483362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400319998 and 400320025.

It is not an unprimeable number, because it can be changed into a prime (400320047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13166 + ... + 31208.

It is an arithmetic number, because the mean of its divisors is an integer number (54619188).

Almost surely, 2400320041 is an apocalyptic number.

It is an amenable number.

400320041 is a deficient number, since it is larger than the sum of its proper divisors (36633463).

400320041 is a wasteful number, since it uses less digits than its factorization.

400320041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20071.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400320041 is about 20007.9994252299. Note that the first 3 decimals coincide. The cubic root of 400320041 is about 737.0027541970.

Adding to 400320041 its reverse (140023004), we get a palindrome (540343045).

The spelling of 400320041 in words is "four hundred million, three hundred twenty thousand, forty-one".

Divisors: 1 11 2017 18043 22187 198473 36392731 400320041