380809680 has 40 divisors (see below), whose sum is σ = 1180510752. Its totient is φ = 101549184.

The previous prime is 380809679. The next prime is 380809691. The reversal of 380809680 is 86908083.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793114 + ... + 793593.

Almost surely, 2^380809680 is an apocalyptic number.

380809680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

380809680 is an abundant number, since it is smaller than the sum of its proper divisors (799701072).

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

380809680 is a wasteful number, since it uses less digits than its factorization.

380809680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586723 (or 1586717 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 380809680 is about 19514.3454924832. The cubic root of 380809680 is about 724.8297214055.

The spelling of 380809680 in words is "three hundred eighty million, eight hundred nine thousand, six hundred eighty".