404157612 has 24 divisors (see below), whose sum is σ = 951689200. Its totient is φ = 133482816.

The previous prime is 404157599. The next prime is 404157613. The reversal of 404157612 is 216751404.

It is a self number, because there is not a number n which added to its sum of digits gives 404157612.

It is not an unprimeable number, because it can be changed into a prime (404157613) 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, 153187 + ... + 155802.

Almost surely, 2^404157612 is an apocalyptic number.

It is an amenable number.

404157612 is an abundant number, since it is smaller than the sum of its proper divisors (547531588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404157612 is a wasteful number, since it uses less digits than its factorization.

404157612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309105 (or 309103 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 404157612 is about 20103.6716049581. The cubic root of 404157612 is about 739.3503014329.

The spelling of 404157612 in words is "four hundred four million, one hundred fifty-seven thousand, six hundred twelve".