1313457804 has 18 divisors (see below), whose sum is σ = 3320129540. Its totient is φ = 437819256.

The previous prime is 1313457799. The next prime is 1313457811. The reversal of 1313457804 is 4087543131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 36484939 = 1313457804 / (1 + 3 + 1 + 3 + 4 + 5 + 7 + 8 + 0 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18242434 + ... + 18242505.

Almost surely, 2^1313457804 is an apocalyptic number.

It is an amenable number.

1313457804 is an abundant number, since it is smaller than the sum of its proper divisors (2006671736).

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

1313457804 is a wasteful number, since it uses less digits than its factorization.

1313457804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36484949 (or 36484944 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1313457804 is about 36241.6584057628. The cubic root of 1313457804 is about 1095.1460517015.

The spelling of 1313457804 in words is "one billion, three hundred thirteen million, four hundred fifty-seven thousand, eight hundred four".