1312437396 has 24 divisors (see below), whose sum is σ = 3066518560. Its totient is φ = 436884192.

The previous prime is 1312437391. The next prime is 1312437403. The reversal of 1312437396 is 6937342131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312437391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65131 + ... + 82866.

Almost surely, 2^1312437396 is an apocalyptic number.

It is an amenable number.

1312437396 is an abundant number, since it is smaller than the sum of its proper divisors (1754081164).

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

1312437396 is a wasteful number, since it uses less digits than its factorization.

1312437396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148743 (or 148741 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 1312437396 is about 36227.5778378848. The cubic root of 1312437396 is about 1094.8623767323.

The spelling of 1312437396 in words is "one billion, three hundred twelve million, four hundred thirty-seven thousand, three hundred ninety-six".