1372398057 has 12 divisors (see below), whose sum is σ = 1982685120. Its totient is φ = 914778648.

The previous prime is 1372398023. The next prime is 1372398077. The reversal of 1372398057 is 7508932731.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1372398057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1372398007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77268 + ... + 93354.

It is an arithmetic number, because the mean of its divisors is an integer number (165223760).

Almost surely, 2^1372398057 is an apocalyptic number.

It is an amenable number.

1372398057 is a deficient number, since it is larger than the sum of its proper divisors (610287063).

1372398057 is a wasteful number, since it uses less digits than its factorization.

1372398057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25572 (or 25569 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 1372398057 is about 37045.8912296627. The cubic root of 1372398057 is about 1111.2881879087.

The spelling of 1372398057 in words is "one billion, three hundred seventy-two million, three hundred ninety-eight thousand, fifty-seven".