381864124 has 24 divisors (see below), whose sum is σ = 716169888. Its totient is φ = 177693120.

The previous prime is 381864113. The next prime is 381864137. The reversal of 381864124 is 421468183.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 52687 + ... + 59494.

It is an arithmetic number, because the mean of its divisors is an integer number (29840412).

Almost surely, 2^381864124 is an apocalyptic number.

It is an amenable number.

381864124 is a deficient number, since it is larger than the sum of its proper divisors (334305764).

381864124 is a wasteful number, since it uses less digits than its factorization.

381864124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112245 (or 112243 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 381864124 is about 19541.3439660633. The cubic root of 381864124 is about 725.4981112812.

The spelling of 381864124 in words is "three hundred eighty-one million, eight hundred sixty-four thousand, one hundred twenty-four".