381057372 has 60 divisors (see below), whose sum is σ = 1009867936. Its totient is φ = 125271360.

The previous prime is 381057371. The next prime is 381057373. The reversal of 381057372 is 273750183.

381057372 is a `hidden beast` number, since 3 + 8 + 10 + 573 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (381057371) and next prime (381057373).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381057371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15597 + ... + 31707.

Almost surely, 2^381057372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381057372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504933968).

381057372 is an abundant number, since it is smaller than the sum of its proper divisors (628810564).

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

381057372 is a wasteful number, since it uses less digits than its factorization.

381057372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16200 (or 16189 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 381057372 is about 19520.6908689216. The cubic root of 381057372 is about 724.9868389208.

The spelling of 381057372 in words is "three hundred eighty-one million, fifty-seven thousand, three hundred seventy-two".