304324428 has 12 divisors (see below), whose sum is σ = 710090360. Its totient is φ = 101441472.

The previous prime is 304324421. The next prime is 304324439. The reversal of 304324428 is 824423403.

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

It is a super-2 number, since 2×304324428² = 185226714955054368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304324395 and 304324404.

It is not an unprimeable number, because it can be changed into a prime (304324421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12680173 + ... + 12680196.

Almost surely, 2^304324428 is an apocalyptic number.

It is an amenable number.

304324428 is an abundant number, since it is smaller than the sum of its proper divisors (405765932).

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

304324428 is a wasteful number, since it uses less digits than its factorization.

304324428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25360376 (or 25360374 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 304324428 is about 17444.8969042525. The cubic root of 304324428 is about 672.6341890754.

The spelling of 304324428 in words is "three hundred four million, three hundred twenty-four thousand, four hundred twenty-eight".