22264990 has 16 divisors (see below), whose sum is σ = 43720560. Its totient is φ = 8096320.

The previous prime is 22264987. The next prime is 22264997. The reversal of 22264990 is 9946222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22264997) 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, 101095 + ... + 101314.

It is an arithmetic number, because the mean of its divisors is an integer number (2732535).

Almost surely, 2^22264990 is an apocalyptic number.

22264990 is a deficient number, since it is larger than the sum of its proper divisors (21455570).

22264990 is a wasteful number, since it uses less digits than its factorization.

22264990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202427.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 22264990 is about 4718.5792353207. The cubic root of 22264990 is about 281.3244648917.

The spelling of 22264990 in words is "twenty-two million, two hundred sixty-four thousand, nine hundred ninety".