13523796 has 144 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 3628800.

The previous prime is 13523779. The next prime is 13523821. The reversal of 13523796 is 69732531.

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 13523796.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190441 + ... + 190511.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

Almost surely, 2^13523796 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 13523796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20913984).

13523796 is an abundant number, since it is smaller than the sum of its proper divisors (28304172).

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

13523796 is a wasteful number, since it uses less digits than its factorization.

13523796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 137 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 13523796 is about 3677.4714138930. The cubic root of 13523796 is about 238.2499786209.

The spelling of 13523796 in words is "thirteen million, five hundred twenty-three thousand, seven hundred ninety-six".