22422318 has 16 divisors (see below), whose sum is σ = 47205120. Its totient is φ = 7080696.

The previous prime is 22422317. The next prime is 22422329. The reversal of 22422318 is 81322422.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98230 + ... + 98457.

It is an arithmetic number, because the mean of its divisors is an integer number (2950320).

Almost surely, 2^22422318 is an apocalyptic number.

22422318 is an abundant number, since it is smaller than the sum of its proper divisors (24782802).

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

22422318 is a wasteful number, since it uses less digits than its factorization.

22422318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196711.

The product of its digits is 1536, while the sum is 24.

The square root of 22422318 is about 4735.2210085697. The cubic root of 22422318 is about 281.9855382152.

It can be divided in two parts, 2242 and 2318, that added together give a triangular number (4560 = T₉₅).

The spelling of 22422318 in words is "twenty-two million, four hundred twenty-two thousand, three hundred eighteen".