22099904 has 14 divisors (see below), whose sum is σ = 43854624. Its totient is φ = 11049920.

The previous prime is 22099901. The next prime is 22099927. The reversal of 22099904 is 40999022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22099901) by changing a digit.

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, 172592 + ... + 172719.

Almost surely, 2^22099904 is an apocalyptic number.

It is an amenable number.

22099904 is a deficient number, since it is larger than the sum of its proper divisors (21754720).

22099904 is an equidigital number, since it uses as much as digits as its factorization.

22099904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345323 (or 345313 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 22099904 is about 4701.0534989511. The cubic root of 22099904 is about 280.6274364995.

The spelling of 22099904 in words is "twenty-two million, ninety-nine thousand, nine hundred four".