22099236 has 12 divisors (see below), whose sum is σ = 51564912. Its totient is φ = 7366408.

The previous prime is 22099199. The next prime is 22099271. The reversal of 22099236 is 63299022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22099197 and 22099206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920790 + ... + 920813.

It is an arithmetic number, because the mean of its divisors is an integer number (4297076).

Almost surely, 2^22099236 is an apocalyptic number.

It is an amenable number.

22099236 is an abundant number, since it is smaller than the sum of its proper divisors (29465676).

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

22099236 is a wasteful number, since it uses less digits than its factorization.

22099236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841610 (or 1841608 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 22099236 is about 4700.9824505097. The cubic root of 22099236 is about 280.6246090209.

The spelling of 22099236 in words is "twenty-two million, ninety-nine thousand, two hundred thirty-six".