1316580 has 24 divisors (see below), whose sum is σ = 3686592. Its totient is φ = 351072.

The previous prime is 1316537. The next prime is 1316591. The reversal of 1316580 is 856131.

It is a self number, because there is not a number n which added to its sum of digits gives 1316580.

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, 10912 + ... + 11031.

It is an arithmetic number, because the mean of its divisors is an integer number (153608).

2^1316580 is an apocalyptic number.

1316580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1316580 is an abundant number, since it is smaller than the sum of its proper divisors (2370012).

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

1316580 is a wasteful number, since it uses less digits than its factorization.

1316580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21955 (or 21953 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1316580 is about 1147.4232000443. The cubic root of 1316580 is about 109.6013115441.

The spelling of 1316580 in words is "one million, three hundred sixteen thousand, five hundred eighty".