1310780 has 12 divisors (see below), whose sum is σ = 2752680. Its totient is φ = 524304.

The previous prime is 1310779. The next prime is 1310789. The reversal of 1310780 is 870131.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 65539 = 1310780 / (1 + 3 + 1 + 0 + 7 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32750 + ... + 32789.

It is an arithmetic number, because the mean of its divisors is an integer number (229390).

2^1310780 is an apocalyptic number.

1310780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310780 is an abundant number, since it is smaller than the sum of its proper divisors (1441900).

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

1310780 is a wasteful number, since it uses less digits than its factorization.

1310780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65548 (or 65546 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1310780 is about 1144.8930081016. The cubic root of 1310780 is about 109.4401304602.

The spelling of 1310780 in words is "one million, three hundred ten thousand, seven hundred eighty".