1313660 has 24 divisors (see below), whose sum is σ = 2904720. Its totient is φ = 497664.

The previous prime is 1313657. The next prime is 1313677. The reversal of 1313660 is 663131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (121030).

2^1313660 is an apocalyptic number.

1313660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313660 is an abundant number, since it is smaller than the sum of its proper divisors (1591060).

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

1313660 is a wasteful number, since it uses less digits than its factorization.

1313660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1313660 is about 1146.1500774331. The cubic root of 1313660 is about 109.5202245053.

Adding to 1313660 its reverse (663131), we get a palindrome (1976791).

The spelling of 1313660 in words is "one million, three hundred thirteen thousand, six hundred sixty".