381394752 has 56 divisors (see below), whose sum is σ = 1062228000. Its totient is φ = 120439296.

The previous prime is 381394679. The next prime is 381394757. The reversal of 381394752 is 257493183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381394757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48627 + ... + 55922.

Almost surely, 2^381394752 is an apocalyptic number.

381394752 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381394752 is an abundant number, since it is smaller than the sum of its proper divisors (680833248).

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

381394752 is a wasteful number, since it uses less digits than its factorization.

381394752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104583 (or 104573 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 381394752 is about 19529.3305568829. The cubic root of 381394752 is about 725.2007383897.

The spelling of 381394752 in words is "three hundred eighty-one million, three hundred ninety-four thousand, seven hundred fifty-two".