1312432560 has 60 divisors (see below), whose sum is σ = 4407588432. Its totient is φ = 349981824.

The previous prime is 1312432553. The next prime is 1312432571. The reversal of 1312432560 is 652342131.

1312432560 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 910692 + ... + 912131.

Almost surely, 2^1312432560 is an apocalyptic number.

1312432560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312432560 is an abundant number, since it is smaller than the sum of its proper divisors (3095155872).

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

1312432560 is a wasteful number, since it uses less digits than its factorization.

1312432560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822842 (or 1822833 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1312432560 is about 36227.5110930906. The cubic root of 1312432560 is about 1094.8610319669.

Adding to 1312432560 its reverse (652342131), we get a palindrome (1964774691).

The spelling of 1312432560 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, five hundred sixty".