390902549284 has 81 divisors (see below), whose sum is σ = 750453972723. Its totient is φ = 178083232704.

The previous prime is 390902549267. The next prime is 390902549329. The reversal of 390902549284 is 482945209093.

The square root of 390902549284 is 625222.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3122350884 + 387780198400 = 55878^2 + 622720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2259552222 + ... + 2259552394.

Almost surely, 2^390902549284 is an apocalyptic number.

390902549284 is the 625222-nd square number.

It is an amenable number.

390902549284 is a deficient number, since it is larger than the sum of its proper divisors (359551423439).

390902549284 is a wasteful number, since it uses less digits than its factorization.

390902549284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 390902549284 in words is "three hundred ninety billion, nine hundred two million, five hundred forty-nine thousand, two hundred eighty-four".