380689128 has 48 divisors (see below), whose sum is σ = 1043471520. Its totient is φ = 125365536.

The previous prime is 380689117. The next prime is 380689151. The reversal of 380689128 is 821986083.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25876 + ... + 37827.

It is an arithmetic number, because the mean of its divisors is an integer number (21738990).

Almost surely, 2^380689128 is an apocalyptic number.

It is an amenable number.

380689128 is an abundant number, since it is smaller than the sum of its proper divisors (662782392).

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

380689128 is a wasteful number, since it uses less digits than its factorization.

380689128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63798 (or 63791 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 380689128 is about 19511.2564433970. The cubic root of 380689128 is about 724.7532274687.

The spelling of 380689128 in words is "three hundred eighty million, six hundred eighty-nine thousand, one hundred twenty-eight".