18839622 has 16 divisors (see below), whose sum is σ = 39317760. Its totient is φ = 6006792.

The previous prime is 18839603. The next prime is 18839677. The reversal of 18839622 is 22693881.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 68122 + ... + 68397.

It is an arithmetic number, because the mean of its divisors is an integer number (2457360).

Almost surely, 2^18839622 is an apocalyptic number.

18839622 is an abundant number, since it is smaller than the sum of its proper divisors (20478138).

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

18839622 is a wasteful number, since it uses less digits than its factorization.

18839622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136547.

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

The square root of 18839622 is about 4340.4633393222. The cubic root of 18839622 is about 266.0872478415.

The spelling of 18839622 in words is "eighteen million, eight hundred thirty-nine thousand, six hundred twenty-two".