390974552 has 48 divisors (see below), whose sum is σ = 777925800. Its totient is φ = 184187520.

The previous prime is 390974543. The next prime is 390974567. The reversal of 390974552 is 255479093.

It is a super-2 number, since 2×390974552² = 305722200623201408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 955724 + ... + 956132.

Almost surely, 2^390974552 is an apocalyptic number.

It is an amenable number.

390974552 is a deficient number, since it is larger than the sum of its proper divisors (386951248).

390974552 is a wasteful number, since it uses less digits than its factorization.

390974552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 390974552 is about 19773.0764424760. The cubic root of 390974552 is about 731.2224167451. Note that the first 3 decimals are identical.

The spelling of 390974552 in words is "three hundred ninety million, nine hundred seventy-four thousand, five hundred fifty-two".