390774528 has 54 divisors (see below), whose sum is σ = 1126705944. Its totient is φ = 130257408.

The previous prime is 390774521. The next prime is 390774599. The reversal of 390774528 is 825477093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390774521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82500 + ... + 87107.

Almost surely, 2^390774528 is an apocalyptic number.

It is an amenable number.

390774528 is an abundant number, since it is smaller than the sum of its proper divisors (735931416).

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

390774528 is a wasteful number, since it uses less digits than its factorization.

390774528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169629 (or 169612 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 390774528 is about 19768.0178065480. The cubic root of 390774528 is about 731.0976967928.

The spelling of 390774528 in words is "three hundred ninety million, seven hundred seventy-four thousand, five hundred twenty-eight".