380657564 has 24 divisors (see below), whose sum is σ = 764362368. Its totient is φ = 162486000.

The previous prime is 380657513. The next prime is 380657579. The reversal of 380657564 is 465756083.

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, 20054 + ... + 34109.

It is an arithmetic number, because the mean of its divisors is an integer number (31848432).

Almost surely, 2^380657564 is an apocalyptic number.

It is an amenable number.

380657564 is an abundant number, since it is smaller than the sum of its proper divisors (383704804).

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

380657564 is a wasteful number, since it uses less digits than its factorization.

380657564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54425 (or 54423 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 380657564 is about 19510.4475602176. The cubic root of 380657564 is about 724.7331964763.

The spelling of 380657564 in words is "three hundred eighty million, six hundred fifty-seven thousand, five hundred sixty-four".