1312942800 has 120 divisors (see below), whose sum is σ = 4529369824. Its totient is φ = 323182080.

The previous prime is 1312942789. The next prime is 1312942831. The reversal of 1312942800 is 82492131.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26482 + ... + 57681.

Almost surely, 2^1312942800 is an apocalyptic number.

1312942800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312942800 is an abundant number, since it is smaller than the sum of its proper divisors (3216427024).

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

1312942800 is a wasteful number, since it uses less digits than its factorization.

1312942800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84197 (or 84186 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1312942800 is about 36234.5525707163. The cubic root of 1312942800 is about 1095.0028981804.

The spelling of 1312942800 in words is "one billion, three hundred twelve million, nine hundred forty-two thousand, eight hundred".