22072404 has 24 divisors (see below), whose sum is σ = 51667168. Its totient is φ = 7333920.

The previous prime is 22072399. The next prime is 22072411. The reversal of 22072404 is 40427022.

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, 1194 + ... + 6750.

Almost surely, 2^22072404 is an apocalyptic number.

It is an amenable number.

22072404 is an abundant number, since it is smaller than the sum of its proper divisors (29594764).

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

22072404 is a wasteful number, since it uses less digits than its factorization.

22072404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895 (or 5893 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22072404 is about 4698.1277121849. The cubic root of 22072404 is about 280.5109886678.

Adding to 22072404 its reverse (40427022), we get a palindrome (62499426).

The spelling of 22072404 in words is "twenty-two million, seventy-two thousand, four hundred four".