18568422 has 24 divisors (see below), whose sum is σ = 40430520. Its totient is φ = 6158880.

The previous prime is 18568409. The next prime is 18568423. The reversal of 18568422 is 22486581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18568423) 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 11 ways as a sum of consecutive naturals, for example, 1354 + ... + 6242.

It is an arithmetic number, because the mean of its divisors is an integer number (1684605).

Almost surely, 2^18568422 is an apocalyptic number.

18568422 is an abundant number, since it is smaller than the sum of its proper divisors (21862098).

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

18568422 is a wasteful number, since it uses less digits than its factorization.

18568422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108 (or 5105 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 18568422 is about 4309.1091886839. The cubic root of 18568422 is about 264.8042793581.

The spelling of 18568422 in words is "eighteen million, five hundred sixty-eight thousand, four hundred twenty-two".