1313870720 has 32 divisors (see below), whose sum is σ = 3140973720. Its totient is φ = 525548032.

The previous prime is 1313870683. The next prime is 1313870743. The reversal of 1313870720 is 270783131.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025822 + ... + 1027101.

Almost surely, 2^1313870720 is an apocalyptic number.

1313870720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313870720 is an abundant number, since it is smaller than the sum of its proper divisors (1827103000).

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

1313870720 is an equidigital number, since it uses as much as digits as its factorization.

1313870720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052942 (or 2052930 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1313870720 is about 36247.3546620991. The cubic root of 1313870720 is about 1095.2608012192.

The spelling of 1313870720 in words is "one billion, three hundred thirteen million, eight hundred seventy thousand, seven hundred twenty".