22690816 has 22 divisors (see below), whose sum is σ = 45361520. Its totient is φ = 11344896.

The previous prime is 22690813. The next prime is 22690861. The reversal of 22690816 is 61809622.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22690813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056 + ... + 12103.

Almost surely, 2^22690816 is an apocalyptic number.

It is an amenable number.

22690816 is a deficient number, since it is larger than the sum of its proper divisors (22670704).

22690816 is an equidigital number, since it uses as much as digits as its factorization.

22690816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22179 (or 22161 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 22690816 is about 4763.4877978221. The cubic root of 22690816 is about 283.1066286504.

The spelling of 22690816 in words is "twenty-two million, six hundred ninety thousand, eight hundred sixteen".