22205404 has 24 divisors (see below), whose sum is σ = 42230160. Its totient is φ = 10155264.

The previous prime is 22205377. The next prime is 22205413. The reversal of 22205404 is 40450222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3987 + ... + 7765.

It is an arithmetic number, because the mean of its divisors is an integer number (1759590).

Almost surely, 2^22205404 is an apocalyptic number.

It is an amenable number.

22205404 is a deficient number, since it is larger than the sum of its proper divisors (20024756).

22205404 is a wasteful number, since it uses less digits than its factorization.

22205404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909 (or 3907 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22205404 is about 4712.2610284236. The cubic root of 22205404 is about 281.0732786772.

Adding to 22205404 its reverse (40450222), we get a palindrome (62655626).

The spelling of 22205404 in words is "twenty-two million, two hundred five thousand, four hundred four".