13223688 has 32 divisors (see below), whose sum is σ = 35004960. Its totient is φ = 4148480.

The previous prime is 13223687. The next prime is 13223699. The reversal of 13223688 is 88632231.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13223687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15798 + ... + 16613.

It is an arithmetic number, because the mean of its divisors is an integer number (1093905).

Almost surely, 2^13223688 is an apocalyptic number.

It is an amenable number.

13223688 is an abundant number, since it is smaller than the sum of its proper divisors (21781272).

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

13223688 is a wasteful number, since it uses less digits than its factorization.

13223688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32437 (or 32433 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 13223688 is about 3636.4389174026. The cubic root of 13223688 is about 236.4744358060.

The spelling of 13223688 in words is "thirteen million, two hundred twenty-three thousand, six hundred eighty-eight".