304690240 has 56 divisors (see below), whose sum is σ = 750585240. Its totient is φ = 117669888.

The previous prime is 304690193. The next prime is 304690241. The reversal of 304690240 is 42096403.

It can be written as a sum of positive squares in 4 ways, for example, as 47665216 + 257025024 = 6904^2 + 16032^2 .

It is a super-2 number, since 2×304690240² = 185672284702515200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304690199 and 304690208.

It is not an unprimeable number, because it can be changed into a prime (304690241) 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, 7137 + ... + 25696.

Almost surely, 2^304690240 is an apocalyptic number.

It is an amenable number.

304690240 is an abundant number, since it is smaller than the sum of its proper divisors (445895000).

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

304690240 is a wasteful number, since it uses less digits than its factorization.

304690240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32879 (or 32869 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 304690240 is about 17455.3785407249. The cubic root of 304690240 is about 672.9035935992.

The spelling of 304690240 in words is "three hundred four million, six hundred ninety thousand, two hundred forty".