381883464 has 32 divisors (see below), whose sum is σ = 1060788000. Its totient is φ = 127294416.

The previous prime is 381883399. The next prime is 381883477. The reversal of 381883464 is 464388183.

381883464 is a `hidden beast` number, since 3 + 8 + 188 + 3 + 464 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883774 + ... + 884205.

It is an arithmetic number, because the mean of its divisors is an integer number (33149625).

Almost surely, 2^381883464 is an apocalyptic number.

It is an amenable number.

381883464 is an abundant number, since it is smaller than the sum of its proper divisors (678904536).

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

381883464 is a wasteful number, since it uses less digits than its factorization.

381883464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767994 (or 1767984 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 381883464 is about 19541.8388080549. The cubic root of 381883464 is about 725.5103590030.

The spelling of 381883464 in words is "three hundred eighty-one million, eight hundred eighty-three thousand, four hundred sixty-four".