1310664 has 32 divisors (see below), whose sum is σ = 3316320. Its totient is φ = 431616.

The previous prime is 1310657. The next prime is 1310669. The reversal of 1310664 is 4660131.

It is a self number, because there is not a number n which added to its sum of digits gives 1310664.

It is not an unprimeable number, because it can be changed into a prime (1310669) 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, 2047 + ... + 2609.

It is an arithmetic number, because the mean of its divisors is an integer number (103635).

2^1310664 is an apocalyptic number.

It is an amenable number.

1310664 is an abundant number, since it is smaller than the sum of its proper divisors (2005656).

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

1310664 is a wasteful number, since it uses less digits than its factorization.

1310664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1310664 is about 1144.8423472252. The cubic root of 1310664 is about 109.4369019933.

Adding to 1310664 its reverse (4660131), we get a palindrome (5970795).

The spelling of 1310664 in words is "one million, three hundred ten thousand, six hundred sixty-four".