18622056 has 16 divisors (see below), whose sum is σ = 46555200. Its totient is φ = 6207344.

The previous prime is 18622013. The next prime is 18622067. The reversal of 18622056 is 65022681.

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, 387936 + ... + 387983.

It is an arithmetic number, because the mean of its divisors is an integer number (2909700).

Almost surely, 2^18622056 is an apocalyptic number.

It is an amenable number.

18622056 is an abundant number, since it is smaller than the sum of its proper divisors (27933144).

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

18622056 is a wasteful number, since it uses less digits than its factorization.

18622056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775928 (or 775924 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 18622056 is about 4315.3280292464. The cubic root of 18622056 is about 265.0589924439.

The spelling of 18622056 in words is "eighteen million, six hundred twenty-two thousand, fifty-six".