390315304 has 8 divisors (see below), whose sum is σ = 731841210. Its totient is φ = 195157648.

The previous prime is 390315283. The next prime is 390315311. The reversal of 390315304 is 403513093.

It can be written as a sum of positive squares in only one way, i.e., 344102500 + 46212804 = 18550^2 + 6798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×390315304² = 304692073073224832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24394699 + ... + 24394714.

Almost surely, 2^390315304 is an apocalyptic number.

It is an amenable number.

390315304 is a deficient number, since it is larger than the sum of its proper divisors (341525906).

390315304 is a wasteful number, since it uses less digits than its factorization.

390315304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48789419 (or 48789415 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 390315304 is about 19756.3990646069. The cubic root of 390315304 is about 730.8111980694.

Adding to 390315304 its reverse (403513093), we get a palindrome (793828397).

The spelling of 390315304 in words is "three hundred ninety million, three hundred fifteen thousand, three hundred four".