380733918 has 16 divisors (see below), whose sum is σ = 762162960. Its totient is φ = 126795456.

The previous prime is 380733917. The next prime is 380733923. The reversal of 380733918 is 819337083.

It is a self number, because there is not a number n which added to its sum of digits gives 380733918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380733917) 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, 21703 + ... + 35106.

It is an arithmetic number, because the mean of its divisors is an integer number (47635185).

Almost surely, 2^380733918 is an apocalyptic number.

380733918 is an abundant number, since it is smaller than the sum of its proper divisors (381429042).

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

380733918 is a wasteful number, since it uses less digits than its factorization.

380733918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57931.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 380733918 is about 19512.4042086054. The cubic root of 380733918 is about 724.7816499808.

The spelling of 380733918 in words is "three hundred eighty million, seven hundred thirty-three thousand, nine hundred eighteen".