18808122 has 16 divisors (see below), whose sum is σ = 37775232. Its totient is φ = 6242880.

The previous prime is 18808117. The next prime is 18808133. The reversal of 18808122 is 22180881.

It is a self number, because there is not a number n which added to its sum of digits gives 18808122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5058 + ... + 7949.

It is an arithmetic number, because the mean of its divisors is an integer number (2360952).

Almost surely, 2^18808122 is an apocalyptic number.

18808122 is an abundant number, since it is smaller than the sum of its proper divisors (18967110).

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

18808122 is a wasteful number, since it uses less digits than its factorization.

18808122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13253.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 18808122 is about 4336.8331764088. The cubic root of 18808122 is about 265.9388651032.

The spelling of 18808122 in words is "eighteen million, eight hundred eight thousand, one hundred twenty-two".