22427372 has 48 divisors (see below), whose sum is σ = 45628800. Its totient is φ = 9538560.

The previous prime is 22427359. The next prime is 22427387. The reversal of 22427372 is 27372422.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116108 + ... + 116300.

It is an arithmetic number, because the mean of its divisors is an integer number (950600).

Almost surely, 2^22427372 is an apocalyptic number.

22427372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22427372 is an abundant number, since it is smaller than the sum of its proper divisors (23201428).

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

22427372 is a wasteful number, since it uses less digits than its factorization.

22427372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 364 counting only the distinct ones).

The product of its digits is 9408, while the sum is 29.

The square root of 22427372 is about 4735.7546389145. The cubic root of 22427372 is about 282.0067231769.

Adding to 22427372 its reverse (27372422), we get a palindrome (49799794).

The spelling of 22427372 in words is "twenty-two million, four hundred twenty-seven thousand, three hundred seventy-two".