380155816 has 16 divisors (see below), whose sum is σ = 713129940. Its totient is φ = 189987840.

The previous prime is 380155793. The next prime is 380155829. The reversal of 380155816 is 618551083.

It can be written as a sum of positive squares in 2 ways, for example, as 376748100 + 3407716 = 19410^2 + 1846^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8776 + ... + 28936.

Almost surely, 2^380155816 is an apocalyptic number.

It is an amenable number.

380155816 is a deficient number, since it is larger than the sum of its proper divisors (332974124).

380155816 is a wasteful number, since it uses less digits than its factorization.

380155816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22524 (or 22520 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 380155816 is about 19497.5848760814. The cubic root of 380155816 is about 724.4146307864.

The spelling of 380155816 in words is "three hundred eighty million, one hundred fifty-five thousand, eight hundred sixteen".