380781576 has 96 divisors (see below), whose sum is σ = 1181980800. Its totient is φ = 108483840.

The previous prime is 380781559. The next prime is 380781593. The reversal of 380781576 is 675187083.

380781576 is a `hidden beast` number, since 3 + 8 + 0 + 78 + 1 + 576 = 666.

It is an interprime number because it is at equal distance from previous prime (380781559) and next prime (380781593).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220396 + ... + 222116.

It is an arithmetic number, because the mean of its divisors is an integer number (12312300).

Almost surely, 2^380781576 is an apocalyptic number.

380781576 is a gapful number since it is divisible by the number (36) 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 380781576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590990400).

380781576 is an abundant number, since it is smaller than the sum of its proper divisors (801199224).

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

380781576 is a wasteful number, since it uses less digits than its factorization.

380781576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 380781576 is about 19513.6253935551. The cubic root of 380781576 is about 724.8118899998.

The spelling of 380781576 in words is "three hundred eighty million, seven hundred eighty-one thousand, five hundred seventy-six".