1312034664 has 64 divisors (see below), whose sum is σ = 3459456000. Its totient is φ = 413519040.

The previous prime is 1312034639. The next prime is 1312034693. The reversal of 1312034664 is 4664302131.

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, 257857 + ... + 262895.

It is an arithmetic number, because the mean of its divisors is an integer number (54054000).

Almost surely, 2^1312034664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312034664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729728000).

1312034664 is an abundant number, since it is smaller than the sum of its proper divisors (2147421336).

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

1312034664 is a wasteful number, since it uses less digits than its factorization.

1312034664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638 (or 5634 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1312034664 is about 36222.0190491916. The cubic root of 1312034664 is about 1094.7503761585.

Adding to 1312034664 its reverse (4664302131), we get a palindrome (5976336795).

The spelling of 1312034664 in words is "one billion, three hundred twelve million, thirty-four thousand, six hundred sixty-four".