404031357 has 12 divisors (see below), whose sum is σ = 584307360. Its totient is φ = 269028168.

The previous prime is 404031319. The next prime is 404031361. The reversal of 404031357 is 753130404.

It is not a de Polignac number, because 404031357 - 2⁸ = 404031101 is a prime.

It is a super-2 number, since 2×404031357² = 326482674878522898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404031357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404031377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19203 + ... + 34304.

It is an arithmetic number, because the mean of its divisors is an integer number (48692280).

Almost surely, 2^404031357 is an apocalyptic number.

It is an amenable number.

404031357 is a deficient number, since it is larger than the sum of its proper divisors (180276003).

404031357 is a wasteful number, since it uses less digits than its factorization.

404031357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54352 (or 54349 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 404031357 is about 20100.5312616358. The cubic root of 404031357 is about 739.2733047436.

The spelling of 404031357 in words is "four hundred four million, thirty-one thousand, three hundred fifty-seven".