13392216 has 72 divisors (see below), whose sum is σ = 38072580. Its totient is φ = 4410288.

The previous prime is 13392193. The next prime is 13392251. The reversal of 13392216 is 61229331.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13392216.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 161311 + ... + 161393.

Almost surely, 2^13392216 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 13392216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19036290).

13392216 is an abundant number, since it is smaller than the sum of its proper divisors (24680364).

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

13392216 is an frugal number, since it uses more digits than its factorization.

13392216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 88 counting only the distinct ones).

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

The square root of 13392216 is about 3659.5376757181. The cubic root of 13392216 is about 237.4747733132.

Multiplying 13392216 by its product of digits (1944), we get a square (26034467904 = 161352²).

13392216 divided by its product of digits (1944) gives a square (6889 = 83²).

The spelling of 13392216 in words is "thirteen million, three hundred ninety-two thousand, two hundred sixteen".