390577984 has 28 divisors (see below), whose sum is σ = 815848000. Its totient is φ = 185010048.

The previous prime is 390577981. The next prime is 390578017. The reversal of 390577984 is 489775093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390577981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159384 + ... + 161815.

Almost surely, 2^390577984 is an apocalyptic number.

It is an amenable number.

390577984 is an abundant number, since it is smaller than the sum of its proper divisors (425270016).

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

390577984 is a wasteful number, since it uses less digits than its factorization.

390577984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321230 (or 321220 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 52.

The square root of 390577984 is about 19763.0459190885. The cubic root of 390577984 is about 730.9751052446.

The spelling of 390577984 in words is "three hundred ninety million, five hundred seventy-seven thousand, nine hundred eighty-four".