13381596 has 36 divisors (see below), whose sum is σ = 33956832. Its totient is φ = 4443264.

The previous prime is 13381549. The next prime is 13381597. The reversal of 13381596 is 69518331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13381596² = 358134223014432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13381596.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11581 + ... + 12683.

Almost surely, 2^13381596 is an apocalyptic number.

It is an amenable number.

13381596 is an abundant number, since it is smaller than the sum of its proper divisors (20575236).

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

13381596 is a wasteful number, since it uses less digits than its factorization.

13381596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1445 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13381596 is about 3658.0863849833. The cubic root of 13381596 is about 237.4119843760.

The spelling of 13381596 in words is "thirteen million, three hundred eighty-one thousand, five hundred ninety-six".