22422490 has 32 divisors (see below), whose sum is σ = 43790544. Its totient is φ = 8232960.

The previous prime is 22422487. The next prime is 22422503. The reversal of 22422490 is 9422422.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11840481 + 10582009 = 3441^2 + 3253^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5362 + ... + 8578.

Almost surely, 2^22422490 is an apocalyptic number.

22422490 is a deficient number, since it is larger than the sum of its proper divisors (21368054).

22422490 is a wasteful number, since it uses less digits than its factorization.

22422490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22422490 is about 4735.2391703060. The cubic root of 22422490 is about 281.9862592436.

The spelling of 22422490 in words is "twenty-two million, four hundred twenty-two thousand, four hundred ninety".