13376520 has 96 divisors (see below), whose sum is σ = 44155800. Its totient is φ = 3511296.

The previous prime is 13376479. The next prime is 13376521. The reversal of 13376520 is 2567331.

It is a happy number.

13376520 is a `hidden beast` number, since 1 + 3 + 3 + 7 + 652 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12489156 + 887364 = 3534^2 + 942^2 .

It is not an unprimeable number, because it can be changed into a prime (13376521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26026 + ... + 26534.

Almost surely, 2^13376520 is an apocalyptic number.

13376520 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 13376520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22077900).

13376520 is an abundant number, since it is smaller than the sum of its proper divisors (30779280).

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

13376520 is a wasteful number, since it uses less digits than its factorization.

13376520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 13376520 is about 3657.3925138000. The cubic root of 13376520 is about 237.3819616582.

The spelling of 13376520 in words is "thirteen million, three hundred seventy-six thousand, five hundred twenty".