390680544 has 48 divisors (see below), whose sum is σ = 1047368448. Its totient is φ = 127454592.

The previous prime is 390680483. The next prime is 390680557. The reversal of 390680544 is 445086093.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38782 + ... + 47805.

It is an arithmetic number, because the mean of its divisors is an integer number (21820176).

Almost surely, 2^390680544 is an apocalyptic number.

It is an amenable number.

390680544 is an abundant number, since it is smaller than the sum of its proper divisors (656687904).

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

390680544 is a wasteful number, since it uses less digits than its factorization.

390680544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86647 (or 86639 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 390680544 is about 19765.6404905078. The cubic root of 390680544 is about 731.0390807279.

The spelling of 390680544 in words is "three hundred ninety million, six hundred eighty thousand, five hundred forty-four".