18422275 has 12 divisors (see below), whose sum is σ = 23376232. Its totient is φ = 14394240.

The previous prime is 18422273. The next prime is 18422291. The reversal of 18422275 is 57222481.

It is a happy number.

It is not a de Polignac number, because 18422275 - 2¹ = 18422273 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18422273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7494 + ... + 9643.

Almost surely, 2^18422275 is an apocalyptic number.

18422275 is a deficient number, since it is larger than the sum of its proper divisors (4953957).

18422275 is a wasteful number, since it uses less digits than its factorization.

18422275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17190 (or 17185 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 18422275 is about 4292.1177756441. The cubic root of 18422275 is about 264.1077145013.

The spelling of 18422275 in words is "eighteen million, four hundred twenty-two thousand, two hundred seventy-five".