13140396 has 72 divisors (see below), whose sum is σ = 34673184. Its totient is φ = 4193280.

The previous prime is 13140389. The next prime is 13140409. The reversal of 13140396 is 69304131.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135420 + ... + 135516.

It is an arithmetic number, because the mean of its divisors is an integer number (481572).

Almost surely, 2^13140396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13140396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17336592).

13140396 is an abundant number, since it is smaller than the sum of its proper divisors (21532788).

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

13140396 is a wasteful number, since it uses less digits than its factorization.

13140396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13140396 is about 3624.9684136555. The cubic root of 13140396 is about 235.9768961391.

The spelling of 13140396 in words is "thirteen million, one hundred forty thousand, three hundred ninety-six".