390985328 has 10 divisors (see below), whose sum is σ = 757534104. Its totient is φ = 195492656.

The previous prime is 390985319. The next prime is 390985333. The reversal of 390985328 is 823589093.

It is a super-2 number, since 2×390985328² = 305739053422535168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12218276 + ... + 12218307.

Almost surely, 2^390985328 is an apocalyptic number.

It is an amenable number.

390985328 is a deficient number, since it is larger than the sum of its proper divisors (366548776).

390985328 is a wasteful number, since it uses less digits than its factorization.

390985328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24436591 (or 24436585 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 390985328 is about 19773.3489323382. The cubic root of 390985328 is about 731.2291346422.

The spelling of 390985328 in words is "three hundred ninety million, nine hundred eighty-five thousand, three hundred twenty-eight".