22888272 has 80 divisors (see below), whose sum is σ = 65567232. Its totient is φ = 6821760.

The previous prime is 22888267. The next prime is 22888277. The reversal of 22888272 is 27288822.

It is an interprime number because it is at equal distance from previous prime (22888267) and next prime (22888277).

It is a self number, because there is not a number n which added to its sum of digits gives 22888272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22888277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35053 + ... + 35699.

Almost surely, 2^22888272 is an apocalyptic number.

22888272 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 22888272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32783616).

22888272 is an abundant number, since it is smaller than the sum of its proper divisors (42678960).

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

22888272 is a wasteful number, since it uses less digits than its factorization.

22888272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 730 counting only the distinct ones).

The product of its digits is 57344, while the sum is 39.

The square root of 22888272 is about 4784.1688933398. The cubic root of 22888272 is about 283.9254581858.

The spelling of 22888272 in words is "twenty-two million, eight hundred eighty-eight thousand, two hundred seventy-two".