22224372 has 24 divisors (see below), whose sum is σ = 54907776. Its totient is φ = 6972288.

The previous prime is 22224361. The next prime is 22224401. The reversal of 22224372 is 27342222.

It is a happy number.

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, 54268 + ... + 54675.

It is an arithmetic number, because the mean of its divisors is an integer number (2287824).

Almost surely, 2^22224372 is an apocalyptic number.

It is an amenable number.

22224372 is an abundant number, since it is smaller than the sum of its proper divisors (32683404).

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

22224372 is a wasteful number, since it uses less digits than its factorization.

22224372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108967 (or 108965 counting only the distinct ones).

The product of its digits is 2688, while the sum is 24.

The square root of 22224372 is about 4714.2732207627. The cubic root of 22224372 is about 281.1532874389.

Adding to 22224372 its reverse (27342222), we get a palindrome (49566594).

The spelling of 22224372 in words is "twenty-two million, two hundred twenty-four thousand, three hundred seventy-two".