22638592 has 26 divisors (see below), whose sum is σ = 45279848. Its totient is φ = 11317248.

The previous prime is 22638571. The next prime is 22638593. The reversal of 22638592 is 29583622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22638593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333 + ... + 6859.

Almost surely, 2^22638592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22638592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22639924).

22638592 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22638592 is an frugal number, since it uses more digits than its factorization.

22638592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551 (or 5529 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 22638592 is about 4758.0029424119. The cubic root of 22638592 is about 282.8892673199.

The spelling of 22638592 in words is "twenty-two million, six hundred thirty-eight thousand, five hundred ninety-two".