13378580 has 12 divisors (see below), whose sum is σ = 28095060. Its totient is φ = 5351424.

The previous prime is 13378579. The next prime is 13378591. The reversal of 13378580 is 8587331.

It can be written as a sum of positive squares in 2 ways, for example, as 3818116 + 9560464 = 1954^2 + 3092^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13378580.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334445 + ... + 334484.

It is an arithmetic number, because the mean of its divisors is an integer number (2341255).

Almost surely, 2^13378580 is an apocalyptic number.

13378580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13378580 is an abundant number, since it is smaller than the sum of its proper divisors (14716480).

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

13378580 is a wasteful number, since it uses less digits than its factorization.

13378580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668938 (or 668936 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 13378580 is about 3657.6741243583. The cubic root of 13378580 is about 237.3941467342.

The spelling of 13378580 in words is "thirteen million, three hundred seventy-eight thousand, five hundred eighty".