380656872 has 24 divisors (see below), whose sum is σ = 1030945890. Its totient is φ = 126885600.

The previous prime is 380656867. The next prime is 380656879. The reversal of 380656872 is 278656083.

380656872 is a `hidden beast` number, since 3 + 80 + 6 + 568 + 7 + 2 = 666.

380656872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 339517476 + 41139396 = 18426^2 + 6414^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (380656879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2643379 + ... + 2643522.

Almost surely, 2^380656872 is an apocalyptic number.

It is an amenable number.

380656872 is an abundant number, since it is smaller than the sum of its proper divisors (650289018).

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

380656872 is a wasteful number, since it uses less digits than its factorization.

380656872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286913 (or 5286906 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 380656872 is about 19510.4298261212. The cubic root of 380656872 is about 724.7327573102.

The spelling of 380656872 in words is "three hundred eighty million, six hundred fifty-six thousand, eight hundred seventy-two".