380692257 has 24 divisors (see below), whose sum is σ = 571559520. Its totient is φ = 225086400.

The previous prime is 380692253. The next prime is 380692259. The reversal of 380692257 is 752296083.

It is not a de Polignac number, because 380692257 - 2² = 380692253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380692253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2094 + ... + 27672.

It is an arithmetic number, because the mean of its divisors is an integer number (23814980).

Almost surely, 2^380692257 is an apocalyptic number.

It is an amenable number.

380692257 is a deficient number, since it is larger than the sum of its proper divisors (190867263).

380692257 is a wasteful number, since it uses less digits than its factorization.

380692257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25645 (or 25634 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 380692257 is about 19511.3366277147. The cubic root of 380692257 is about 724.7552131192.

The spelling of 380692257 in words is "three hundred eighty million, six hundred ninety-two thousand, two hundred fifty-seven".