22787422 has 16 divisors (see below), whose sum is σ = 41120640. Its totient is φ = 9251928.

The previous prime is 22787389. The next prime is 22787423. The reversal of 22787422 is 22478722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22787423) 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, 42568 + ... + 43099.

It is an arithmetic number, because the mean of its divisors is an integer number (2570040).

Almost surely, 2^22787422 is an apocalyptic number.

22787422 is a deficient number, since it is larger than the sum of its proper divisors (18333218).

22787422 is a wasteful number, since it uses less digits than its factorization.

22787422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85695.

The product of its digits is 25088, while the sum is 34.

The square root of 22787422 is about 4773.6172867125. The cubic root of 22787422 is about 283.5078346809.

The spelling of 22787422 in words is "twenty-two million, seven hundred eighty-seven thousand, four hundred twenty-two".