1310660 has 36 divisors (see below), whose sum is σ = 3006444. Its totient is φ = 477120.

The previous prime is 1310657. The next prime is 1310669. The reversal of 1310660 is 660131.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 988036 = 568^2 + 994^2 .

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 18425 + ... + 18495.

2^1310660 is an apocalyptic number.

1310660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503222).

1310660 is an abundant number, since it is smaller than the sum of its proper divisors (1695784).

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

1310660 is a wasteful number, since it uses less digits than its factorization.

1310660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1310660 is about 1144.8406002584. The cubic root of 1310660 is about 109.4367906634.

Adding to 1310660 its reverse (660131), we get a palindrome (1970791).

The spelling of 1310660 in words is "one million, three hundred ten thousand, six hundred sixty".