390144896 has 32 divisors (see below), whose sum is σ = 780079680. Its totient is φ = 194360320.

The previous prime is 390144877. The next prime is 390144913. The reversal of 390144896 is 698441093.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30545 + ... + 41391.

It is an arithmetic number, because the mean of its divisors is an integer number (24377490).

Almost surely, 2^390144896 is an apocalyptic number.

It is an amenable number.

390144896 is a deficient number, since it is larger than the sum of its proper divisors (389934784).

390144896 is a wasteful number, since it uses less digits than its factorization.

390144896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142 (or 11130 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 390144896 is about 19752.0858645359. The cubic root of 390144896 is about 730.7048274834.

The spelling of 390144896 in words is "three hundred ninety million, one hundred forty-four thousand, eight hundred ninety-six".