13366644 has 12 divisors (see below), whose sum is σ = 31188864. Its totient is φ = 4455544.

The previous prime is 13366637. The next prime is 13366649. The reversal of 13366644 is 44666331.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13366649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556932 + ... + 556955.

It is an arithmetic number, because the mean of its divisors is an integer number (2599072).

Almost surely, 2^13366644 is an apocalyptic number.

It is an amenable number.

13366644 is an abundant number, since it is smaller than the sum of its proper divisors (17822220).

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

13366644 is a wasteful number, since it uses less digits than its factorization.

13366644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113894 (or 1113892 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 13366644 is about 3656.0421222956. The cubic root of 13366644 is about 237.3235268921.

The spelling of 13366644 in words is "thirteen million, three hundred sixty-six thousand, six hundred forty-four".