22002292 has 12 divisors (see below), whose sum is σ = 41465956. Its totient is φ = 10154880.

The previous prime is 22002289. The next prime is 22002293. The reversal of 22002292 is 29220022.

It can be written as a sum of positive squares in 2 ways, for example, as 1263376 + 20738916 = 1124^2 + 4554^2 .

It is a hoax number, since the sum of its digits (19) 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 (22002293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211509 + ... + 211612.

Almost surely, 2^22002292 is an apocalyptic number.

It is an amenable number.

22002292 is a deficient number, since it is larger than the sum of its proper divisors (19463664).

22002292 is a wasteful number, since it uses less digits than its factorization.

22002292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423138 (or 423136 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22002292 is about 4690.6600814811. The cubic root of 22002292 is about 280.2136634460.

The spelling of 22002292 in words is "twenty-two million, two thousand, two hundred ninety-two".