13622844 has 12 divisors (see below), whose sum is σ = 31786664. Its totient is φ = 4540944.

The previous prime is 13622827. The next prime is 13622863. The reversal of 13622844 is 44822631.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567607 + ... + 567630.

Almost surely, 2^13622844 is an apocalyptic number.

It is an amenable number.

13622844 is an abundant number, since it is smaller than the sum of its proper divisors (18163820).

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

13622844 is a wasteful number, since it uses less digits than its factorization.

13622844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135244 (or 1135242 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 13622844 is about 3690.9137080132. The cubic root of 13622844 is about 238.8302103420.

The spelling of 13622844 in words is "thirteen million, six hundred twenty-two thousand, eight hundred forty-four".