382015881 has 36 divisors (see below), whose sum is σ = 629007600. Its totient is φ = 222696864.

The previous prime is 382015867. The next prime is 382015903. The reversal of 382015881 is 188510283.

It is not a de Polignac number, because 382015881 - 2¹⁵ = 381983113 is a prime.

It is a super-2 number, since 2×382015881² = 291872266672412322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (382015831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22290 + ... + 35508.

Almost surely, 2^382015881 is an apocalyptic number.

It is an amenable number.

382015881 is a deficient number, since it is larger than the sum of its proper divisors (246991719).

382015881 is a wasteful number, since it uses less digits than its factorization.

382015881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13270 (or 13254 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 382015881 is about 19545.2265527929. The cubic root of 382015881 is about 725.5942055272.

It can be divided in two parts, 3820 and 15881, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 382015881 in words is "three hundred eighty-two million, fifteen thousand, eight hundred eighty-one".