381157152 has 96 divisors (see below), whose sum is σ = 1039417344. Its totient is φ = 122169600.

The previous prime is 381157151. The next prime is 381157159. The reversal of 381157152 is 251751183.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×381157152² = 290561549041502208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381157151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627633 + ... + 628239.

It is an arithmetic number, because the mean of its divisors is an integer number (10827264).

Almost surely, 2^381157152 is an apocalyptic number.

381157152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381157152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519708672).

381157152 is an abundant number, since it is smaller than the sum of its proper divisors (658260192).

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

381157152 is a wasteful number, since it uses less digits than its factorization.

381157152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 854 counting only the distinct ones).

The product of its digits is 8400, while the sum is 33.

The square root of 381157152 is about 19523.2464513461. The cubic root of 381157152 is about 725.0501127469.

The spelling of 381157152 in words is "three hundred eighty-one million, one hundred fifty-seven thousand, one hundred fifty-two".