22427370 has 96 divisors (see below), whose sum is σ = 67511808. Its totient is φ = 5059584.

The previous prime is 22427359. The next prime is 22427387. The reversal of 22427370 is 7372422.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60927 + ... + 61293.

It is an arithmetic number, because the mean of its divisors is an integer number (703248).

Almost surely, 2^22427370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22427370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33755904).

22427370 is an abundant number, since it is smaller than the sum of its proper divisors (45084438).

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

22427370 is a wasteful number, since it uses less digits than its factorization.

22427370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22427370 is about 4735.7544277549. The cubic root of 22427370 is about 282.0067147941.

Adding to 22427370 its reverse (7372422), we get a palindrome (29799792).

The spelling of 22427370 in words is "twenty-two million, four hundred twenty-seven thousand, three hundred seventy".