22126290 has 32 divisors (see below), whose sum is σ = 53706240. Its totient is φ = 5833344.

The previous prime is 22126289. The next prime is 22126297. The reversal of 22126290 is 9262122.

It is a self number, because there is not a number n which added to its sum of digits gives 22126290.

It is not an unprimeable number, because it can be changed into a prime (22126297) by changing a digit.

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, 1474 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 2^22126290 is an apocalyptic number.

22126290 is an abundant number, since it is smaller than the sum of its proper divisors (31579950).

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

22126290 is a wasteful number, since it uses less digits than its factorization.

22126290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8386.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 22126290 is about 4703.8590540109. The cubic root of 22126290 is about 280.7390763599.

The spelling of 22126290 in words is "twenty-two million, one hundred twenty-six thousand, two hundred ninety".