381583264 has 48 divisors (see below), whose sum is σ = 765313920. Its totient is φ = 187246080.

The previous prime is 381583249. The next prime is 381583303. The reversal of 381583264 is 462385183.

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, 885129 + ... + 885559.

It is an arithmetic number, because the mean of its divisors is an integer number (15944040).

Almost surely, 2^381583264 is an apocalyptic number.

It is an amenable number.

381583264 is an abundant number, since it is smaller than the sum of its proper divisors (383730656).

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

381583264 is a wasteful number, since it uses less digits than its factorization.

381583264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 885 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 381583264 is about 19534.1563421613. The cubic root of 381583264 is about 725.3202003762.

The spelling of 381583264 in words is "three hundred eighty-one million, five hundred eighty-three thousand, two hundred sixty-four".