22290368 has 14 divisors (see below), whose sum is σ = 44232576. Its totient is φ = 11145152.

The previous prime is 22290343. The next prime is 22290409. The reversal of 22290368 is 86309222.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 174080 + ... + 174207.

Almost surely, 2^22290368 is an apocalyptic number.

It is an amenable number.

22290368 is a deficient number, since it is larger than the sum of its proper divisors (21942208).

22290368 is an equidigital number, since it uses as much as digits as its factorization.

22290368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348299 (or 348289 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22290368 is about 4721.2676263902. The cubic root of 22290368 is about 281.4313103837.

The spelling of 22290368 in words is "twenty-two million, two hundred ninety thousand, three hundred sixty-eight".