1397613402 has 12 divisors (see below), whose sum is σ = 3028162410. Its totient is φ = 465871128.

The previous prime is 1397613337. The next prime is 1397613403. The reversal of 1397613402 is 2043167931.

1397613402 is a `hidden beast` number, since 1 + 39 + 7 + 613 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 811053441 + 586559961 = 28479^2 + 24219^2 .

It is not an unprimeable number, because it can be changed into a prime (1397613403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38822577 + ... + 38822612.

Almost surely, 2^1397613402 is an apocalyptic number.

1397613402 is an abundant number, since it is smaller than the sum of its proper divisors (1630549008).

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

1397613402 is a wasteful number, since it uses less digits than its factorization.

1397613402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77645197 (or 77645194 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1397613402 is about 37384.6680070855. The cubic root of 1397613402 is about 1118.0528993801.

The spelling of 1397613402 in words is "one billion, three hundred ninety-seven million, six hundred thirteen thousand, four hundred two".