22454424 has 24 divisors (see below), whose sum is σ = 60814260. Its totient is φ = 7484784.

The previous prime is 22454387. The next prime is 22454431. The reversal of 22454424 is 42445422.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155862 + ... + 156005.

Almost surely, 2^22454424 is an apocalyptic number.

22454424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22454424 is an abundant number, since it is smaller than the sum of its proper divisors (38359836).

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

22454424 is a wasteful number, since it uses less digits than its factorization.

22454424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311879 (or 311872 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 22454424 is about 4738.6099227516. The cubic root of 22454424 is about 282.1200635572.

Adding to 22454424 its reverse (42445422), we get a palindrome (64899846).

The spelling of 22454424 in words is "twenty-two million, four hundred fifty-four thousand, four hundred twenty-four".