390738676 has 12 divisors (see below), whose sum is σ = 724015908. Its totient is φ = 183876992.

The previous prime is 390738671. The next prime is 390738679. The reversal of 390738676 is 676837093.

It can be written as a sum of positive squares in 2 ways, for example, as 205234276 + 185504400 = 14326^2 + 13620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390738671) 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, 2873011 + ... + 2873146.

It is an arithmetic number, because the mean of its divisors is an integer number (60334659).

Almost surely, 2^390738676 is an apocalyptic number.

It is an amenable number.

390738676 is a deficient number, since it is larger than the sum of its proper divisors (333277232).

390738676 is a wasteful number, since it uses less digits than its factorization.

390738676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746178 (or 5746176 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 49.

The square root of 390738676 is about 19767.1109674631. The cubic root of 390738676 is about 731.0753376791.

The spelling of 390738676 in words is "three hundred ninety million, seven hundred thirty-eight thousand, six hundred seventy-six".