22472404 has 12 divisors (see below), whose sum is σ = 39473728. Its totient is φ = 11194200.

The previous prime is 22472389. The next prime is 22472407. The reversal of 22472404 is 40427422.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22472407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9282 + ... + 11449.

Almost surely, 2^22472404 is an apocalyptic number.

It is an amenable number.

22472404 is a deficient number, since it is larger than the sum of its proper divisors (17001324).

22472404 is a wasteful number, since it uses less digits than its factorization.

22472404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21006 (or 21004 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 22472404 is about 4740.5067239695. The cubic root of 22472404 is about 282.1953444229.

Adding to 22472404 its reverse (40427422), we get a palindrome (62899826).

The spelling of 22472404 in words is "twenty-two million, four hundred seventy-two thousand, four hundred four".