1312760 has 32 divisors (see below), whose sum is σ = 3036960. Its totient is φ = 510336.

The previous prime is 1312739. The next prime is 1312769. The reversal of 1312760 is 672131.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312769) 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, 1037 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (94905).

2^1312760 is an apocalyptic number.

1312760 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 1312760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518480).

1312760 is an abundant number, since it is smaller than the sum of its proper divisors (1724200).

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

1312760 is a wasteful number, since it uses less digits than its factorization.

1312760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1312760 is about 1145.7573914228. The cubic root of 1312760 is about 109.4952077023.

Adding to 1312760 its reverse (672131), we get a palindrome (1984891).

The spelling of 1312760 in words is "one million, three hundred twelve thousand, seven hundred sixty".