22818422 has 12 divisors (see below), whose sum is σ = 37622508. Its totient is φ = 10371900.

The previous prime is 22818421. The next prime is 22818431. The reversal of 22818422 is 22481822.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22818421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46904 + ... + 47387.

It is an arithmetic number, because the mean of its divisors is an integer number (3135209).

Almost surely, 2^22818422 is an apocalyptic number.

22818422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22818422 is a deficient number, since it is larger than the sum of its proper divisors (14804086).

22818422 is a wasteful number, since it uses less digits than its factorization.

22818422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94315 (or 94304 counting only the distinct ones).

The product of its digits is 4096, while the sum is 29.

The square root of 22818422 is about 4776.8631967014. The cubic root of 22818422 is about 283.6363377426.

The spelling of 22818422 in words is "twenty-two million, eight hundred eighteen thousand, four hundred twenty-two".