13988622 has 16 divisors (see below), whose sum is σ = 28017792. Its totient is φ = 4656120.

The previous prime is 13988599. The next prime is 13988629. The reversal of 13988622 is 22688931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13988629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4597 + ... + 7007.

It is an arithmetic number, because the mean of its divisors is an integer number (1751112).

Almost surely, 2^13988622 is an apocalyptic number.

13988622 is an abundant number, since it is smaller than the sum of its proper divisors (14029170).

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

13988622 is a wasteful number, since it uses less digits than its factorization.

13988622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383.

The product of its digits is 41472, while the sum is 39.

The square root of 13988622 is about 3740.1366285204. The cubic root of 13988622 is about 240.9489168200.

The spelling of 13988622 in words is "thirteen million, nine hundred eighty-eight thousand, six hundred twenty-two".