304156812 has 12 divisors (see below), whose sum is σ = 709699256. Its totient is φ = 101385600.

The previous prime is 304156799. The next prime is 304156823. The reversal of 304156812 is 218651403.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×304156812² = 185022732572006688, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 304156812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12673189 + ... + 12673212.

Almost surely, 2^304156812 is an apocalyptic number.

It is an amenable number.

304156812 is an abundant number, since it is smaller than the sum of its proper divisors (405542444).

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

304156812 is a wasteful number, since it uses less digits than its factorization.

304156812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25346408 (or 25346406 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 304156812 is about 17440.0920869128. The cubic root of 304156812 is about 672.5106751022.

The spelling of 304156812 in words is "three hundred four million, one hundred fifty-six thousand, eight hundred twelve".