22022404 has 6 divisors (see below), whose sum is σ = 38539214. Its totient is φ = 11011200.

The previous prime is 22022393. The next prime is 22022417. The reversal of 22022404 is 40422022.

It can be written as a sum of positive squares in only one way, i.e., 21529600 + 492804 = 4640^2 + 702^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752797 + ... + 2752804.

Almost surely, 2^22022404 is an apocalyptic number.

It is an amenable number.

22022404 is a deficient number, since it is larger than the sum of its proper divisors (16516810).

22022404 is a wasteful number, since it uses less digits than its factorization.

22022404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505605 (or 5505603 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22022404 is about 4692.8034265245. The cubic root of 22022404 is about 280.2990172948.

Adding to 22022404 its reverse (40422022), we get a palindrome (62444426).

The spelling of 22022404 in words is "twenty-two million, twenty-two thousand, four hundred four".