1313004402 has 24 divisors (see below), whose sum is σ = 2850323580. Its totient is φ = 436824960.

The previous prime is 1313004389. The next prime is 1313004421. The reversal of 1313004402 is 2044003131.

1313004402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1299674601 + 13329801 = 36051^2 + 3651^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60627 + ... + 79382.

Almost surely, 2^1313004402 is an apocalyptic number.

1313004402 is an abundant number, since it is smaller than the sum of its proper divisors (1537319178).

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

1313004402 is a wasteful number, since it uses less digits than its factorization.

1313004402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140538 (or 140535 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1313004402 is about 36235.4026057390. The cubic root of 1313004402 is about 1095.0200234032.

Adding to 1313004402 its reverse (2044003131), we get a palindrome (3357007533).

The spelling of 1313004402 in words is "one billion, three hundred thirteen million, four thousand, four hundred two".