382881157 has 8 divisors (see below), whose sum is σ = 405783000. Its totient is φ = 360021504.

The previous prime is 382881137. The next prime is 382881181. The reversal of 382881157 is 751188283.

It can be written as a sum of positive squares in 4 ways, for example, as 1811716 + 381069441 = 1346^2 + 19521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 382881157 - 2⁷ = 382881029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382881137) 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, 9219 + ... + 29167.

It is an arithmetic number, because the mean of its divisors is an integer number (50722875).

Almost surely, 2^382881157 is an apocalyptic number.

It is an amenable number.

382881157 is a deficient number, since it is larger than the sum of its proper divisors (22901843).

382881157 is a wasteful number, since it uses less digits than its factorization.

382881157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21095.

The product of its digits is 107520, while the sum is 43.

The square root of 382881157 is about 19567.3492583947. The cubic root of 382881157 is about 726.1416224056.

The spelling of 382881157 in words is "three hundred eighty-two million, eight hundred eighty-one thousand, one hundred fifty-seven".