1312532344 has 64 divisors (see below), whose sum is σ = 2669436000. Its totient is φ = 603617280.

The previous prime is 1312532323. The next prime is 1312532363. The reversal of 1312532344 is 4432352131.

It is a happy number.

It is a super-2 number, since 2×1312532344² = 3445482308092268672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407412 + ... + 410620.

Almost surely, 2^1312532344 is an apocalyptic number.

It is an amenable number.

1312532344 is an abundant number, since it is smaller than the sum of its proper divisors (1356903656).

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

1312532344 is a wasteful number, since it uses less digits than its factorization.

1312532344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328 (or 3324 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 1312532344 is about 36228.8882523326. Note that the first 3 decimals coincide. The cubic root of 1312532344 is about 1094.8887786230. Note that the first 3 decimals are identical.

Adding to 1312532344 its reverse (4432352131), we get a palindrome (5744884475).

The spelling of 1312532344 in words is "one billion, three hundred twelve million, five hundred thirty-two thousand, three hundred forty-four".