390560384 has 16 divisors (see below), whose sum is σ = 778069770. Its totient is φ = 195280128.

The previous prime is 390560381. The next prime is 390560389. The reversal of 390560384 is 483065093.

It can be written as a sum of positive squares in only one way, i.e., 280897600 + 109662784 = 16760^2 + 10472^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (390560381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1525499 + ... + 1525754.

Almost surely, 2^390560384 is an apocalyptic number.

It is an amenable number.

390560384 is a deficient number, since it is larger than the sum of its proper divisors (387509386).

390560384 is an equidigital number, since it uses as much as digits as its factorization.

390560384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051267 (or 3051255 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 390560384 is about 19762.6006385799. The cubic root of 390560384 is about 730.9641254868.

The spelling of 390560384 in words is "three hundred ninety million, five hundred sixty thousand, three hundred eighty-four".