22404022 has 16 divisors (see below), whose sum is σ = 34171632. Its totient is φ = 11015200.

The previous prime is 22403987. The next prime is 22404061. The reversal of 22404022 is 22040422.

It is a junction number, because it is equal to n+sod(n) for n = 22403987 and 22404005.

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, 39513 + ... + 40075.

It is an arithmetic number, because the mean of its divisors is an integer number (2135727).

Almost surely, 2^22404022 is an apocalyptic number.

22404022 is a deficient number, since it is larger than the sum of its proper divisors (11767610).

22404022 is a wasteful number, since it uses less digits than its factorization.

22404022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

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

The square root of 22404022 is about 4733.2887087098. The cubic root of 22404022 is about 281.9088198417.

Adding to 22404022 its reverse (22040422), we get a palindrome (44444444).

The spelling of 22404022 in words is "twenty-two million, four hundred four thousand, twenty-two".