1313004040 has 32 divisors (see below), whose sum is σ = 2983518360. Its totient is φ = 520000000.

The previous prime is 1313004023. The next prime is 1313004073. The reversal of 1313004040 is 404003131.

It can be written as a sum of positive squares in 4 ways, for example, as 1302776836 + 10227204 = 36094^2 + 3198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158461 + ... + 166540.

Almost surely, 2^1313004040 is an apocalyptic number.

1313004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313004040 is an abundant number, since it is smaller than the sum of its proper divisors (1670514320).

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

1313004040 is a wasteful number, since it uses less digits than its factorization.

1313004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325113 (or 325109 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1313004040 is about 36235.3976106238. The cubic root of 1313004040 is about 1095.0199227695.

Adding to 1313004040 its reverse (404003131), we get a palindrome (1717007171).

Subtracting from 1313004040 its reverse (404003131), we obtain a palindrome (909000909).

The spelling of 1313004040 in words is "one billion, three hundred thirteen million, four thousand, forty".