1312624460 has 48 divisors (see below), whose sum is σ = 3217342464. Its totient is φ = 440465088.

The previous prime is 1312624441. The next prime is 1312624463. The reversal of 1312624460 is 644262131.

It is not an unprimeable number, because it can be changed into a prime (1312624463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93164 + ... + 106323.

It is an arithmetic number, because the mean of its divisors is an integer number (67027968).

Almost surely, 2^1312624460 is an apocalyptic number.

1312624460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312624460 is an abundant number, since it is smaller than the sum of its proper divisors (1904718004).

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

1312624460 is a wasteful number, since it uses less digits than its factorization.

1312624460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199550 (or 199548 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1312624460 is about 36230.1595359446. The cubic root of 1312624460 is about 1094.9143918116.

Adding to 1312624460 its reverse (644262131), we get a palindrome (1956886591).

The spelling of 1312624460 in words is "one billion, three hundred twelve million, six hundred twenty-four thousand, four hundred sixty".