22710272 has 48 divisors (see below), whose sum is σ = 48959820. Its totient is φ = 10469376.

The previous prime is 22710257. The next prime is 22710287. The reversal of 22710272 is 27201722.

It is an interprime number because it is at equal distance from previous prime (22710257) and next prime (22710287).

It can be written as a sum of positive squares in 2 ways, for example, as 18113536 + 4596736 = 4256^2 + 2144^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26198 + ... + 27050.

Almost surely, 2^22710272 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 22710272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24479910).

22710272 is an abundant number, since it is smaller than the sum of its proper divisors (26249548).

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

22710272 is an equidigital number, since it uses as much as digits as its factorization.

22710272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 22710272 is about 4765.5295613394. The cubic root of 22710272 is about 283.1875211287.

Adding to 22710272 its reverse (27201722), we get a palindrome (49911994).

The spelling of 22710272 in words is "twenty-two million, seven hundred ten thousand, two hundred seventy-two".