22338272 has 48 divisors (see below), whose sum is σ = 50812272. Its totient is φ = 9553920.

The previous prime is 22338223. The next prime is 22338287. The reversal of 22338272 is 27283322.

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, 4118 + ... + 7850.

It is an arithmetic number, because the mean of its divisors is an integer number (1058589).

Almost surely, 2^22338272 is an apocalyptic number.

22338272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22338272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25406136).

22338272 is an abundant number, since it is smaller than the sum of its proper divisors (28474000).

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

22338272 is a wasteful number, since it uses less digits than its factorization.

22338272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771 (or 3763 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 22338272 is about 4726.3381174013. The cubic root of 22338272 is about 281.6327731743.

It can be divided in two parts, 22 and 338272, that multiplied together give a square (7441984 = 2728²).

The spelling of 22338272 in words is "twenty-two million, three hundred thirty-eight thousand, two hundred seventy-two".