390576852 has 18 divisors (see below), whose sum is σ = 987291578. Its totient is φ = 130192272.

The previous prime is 390576841. The next prime is 390576877. The reversal of 390576852 is 258675093.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 356983236 + 33593616 = 18894^2 + 5796^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 390576798 and 390576807.

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 in 5 ways as a sum of consecutive naturals, for example, 5424643 + ... + 5424714.

Almost surely, 2^390576852 is an apocalyptic number.

It is an amenable number.

390576852 is an abundant number, since it is smaller than the sum of its proper divisors (596714726).

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

390576852 is a wasteful number, since it uses less digits than its factorization.

390576852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10849367 (or 10849362 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 390576852 is about 19763.0172797577. The cubic root of 390576852 is about 730.9743990565.

The spelling of 390576852 in words is "three hundred ninety million, five hundred seventy-six thousand, eight hundred fifty-two".