380784816 has 30 divisors (see below), whose sum is σ = 1065669020. Its totient is φ = 126928224.

The previous prime is 380784791. The next prime is 380784829. The reversal of 380784816 is 618487083.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1322026 + ... + 1322313.

Almost surely, 2^380784816 is an apocalyptic number.

380784816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

380784816 is an abundant number, since it is smaller than the sum of its proper divisors (684884204).

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

380784816 is a wasteful number, since it uses less digits than its factorization.

380784816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644353 (or 2644344 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 380784816 is about 19513.7084122931. The cubic root of 380784816 is about 724.8139457574.

The spelling of 380784816 in words is "three hundred eighty million, seven hundred eighty-four thousand, eight hundred sixteen".