13017996 has 72 divisors (see below), whose sum is σ = 34856640. Its totient is φ = 4246992.

The previous prime is 13017967. The next prime is 13018001. The reversal of 13017996 is 69971031.

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 13017996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57235 + ... + 57461.

It is an arithmetic number, because the mean of its divisors is an integer number (484120).

Almost surely, 2^13017996 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 13017996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17428320).

13017996 is an abundant number, since it is smaller than the sum of its proper divisors (21838644).

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

13017996 is a wasteful number, since it uses less digits than its factorization.

13017996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13017996 is about 3608.0460085758. The cubic root of 13017996 is about 235.2419177684.

The spelling of 13017996 in words is "thirteen million, seventeen thousand, nine hundred ninety-six".