22169290 has 64 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 7223040.

The previous prime is 22169269. The next prime is 22169341. The reversal of 22169290 is 9296122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52701 + ... + 53119.

It is an arithmetic number, because the mean of its divisors is an integer number (754110).

Almost surely, 2^22169290 is an apocalyptic number.

22169290 is an abundant number, since it is smaller than the sum of its proper divisors (26093750).

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

22169290 is a wasteful number, since it uses less digits than its factorization.

22169290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 22169290 is about 4708.4275506797. The cubic root of 22169290 is about 280.9208204700.

The spelling of 22169290 in words is "twenty-two million, one hundred sixty-nine thousand, two hundred ninety".