390677652 has 36 divisors (see below), whose sum is σ = 988303680. Its totient is φ = 130126032.

The previous prime is 390677641. The next prime is 390677653. The reversal of 390677652 is 256776093.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 390677598 and 390677607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390677653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54933 + ... + 61635.

It is an arithmetic number, because the mean of its divisors is an integer number (27452880).

Almost surely, 2^390677652 is an apocalyptic number.

It is an amenable number.

390677652 is an abundant number, since it is smaller than the sum of its proper divisors (597626028).

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

390677652 is a wasteful number, since it uses less digits than its factorization.

390677652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332 (or 8327 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 390677652 is about 19765.5673331175. The cubic root of 390677652 is about 731.0372768925.

The spelling of 390677652 in words is "three hundred ninety million, six hundred seventy-seven thousand, six hundred fifty-two".