1398332625 has 32 divisors (see below), whose sum is σ = 2347488000. Its totient is φ = 739155200.

The previous prime is 1398332567. The next prime is 1398332653. The reversal of 1398332625 is 5262338931.

It is not a de Polignac number, because 1398332625 - 2⁶ = 1398332561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25876 + ... + 58874.

It is an arithmetic number, because the mean of its divisors is an integer number (73359000).

Almost surely, 2^1398332625 is an apocalyptic number.

1398332625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1398332625 is a deficient number, since it is larger than the sum of its proper divisors (949155375).

1398332625 is a wasteful number, since it uses less digits than its factorization.

1398332625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33130 (or 33120 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 1398332625 is about 37394.2859939858. The cubic root of 1398332625 is about 1118.2446528033.

The spelling of 1398332625 in words is "one billion, three hundred ninety-eight million, three hundred thirty-two thousand, six hundred twenty-five".