22410018 has 12 divisors (see below), whose sum is σ = 48555078. Its totient is φ = 7470000.

The previous prime is 22410013. The next prime is 22410053. The reversal of 22410018 is 81001422.

It can be written as a sum of positive squares in only one way, i.e., 21594609 + 815409 = 4647^2 + 903^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1245001 = 22410018 / (2 + 2 + 4 + 1 + 0 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (22410013) 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 5 ways as a sum of consecutive naturals, for example, 622483 + ... + 622518.

Almost surely, 2^22410018 is an apocalyptic number.

22410018 is an abundant number, since it is smaller than the sum of its proper divisors (26145060).

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

22410018 is a wasteful number, since it uses less digits than its factorization.

22410018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245009 (or 1245006 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 22410018 is about 4733.9220525902. The cubic root of 22410018 is about 281.9339667329.

It can be divided in two parts, 2241001 and 8, that added together give a square (2241009 = 1497²).

The spelling of 22410018 in words is "twenty-two million, four hundred ten thousand, eighteen".