22205924 has 36 divisors (see below), whose sum is σ = 42611184. Its totient is φ = 10120032.

The previous prime is 22205899. The next prime is 22205929. The reversal of 22205924 is 42950222.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 22205893 and 22205902.

It is not an unprimeable number, because it can be changed into a prime (22205929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72179 + ... + 72485.

It is an arithmetic number, because the mean of its divisors is an integer number (1183644).

Almost surely, 2^22205924 is an apocalyptic number.

It is an amenable number.

22205924 is a deficient number, since it is larger than the sum of its proper divisors (20405260).

22205924 is a wasteful number, since it uses less digits than its factorization.

22205924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22205924 is about 4712.3162033123. The cubic root of 22205924 is about 281.0754726922.

The spelling of 22205924 in words is "twenty-two million, two hundred five thousand, nine hundred twenty-four".