22999272 has 64 divisors (see below), whose sum is σ = 62515200. Its totient is φ = 7024320.

The previous prime is 22999271. The next prime is 22999289. The reversal of 22999272 is 27299922.

It is not an unprimeable number, because it can be changed into a prime (22999271) 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, 13323 + ... + 14949.

It is an arithmetic number, because the mean of its divisors is an integer number (976800).

Almost surely, 2^22999272 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 22999272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31257600).

22999272 is an abundant number, since it is smaller than the sum of its proper divisors (39515928).

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

22999272 is a wasteful number, since it uses less digits than its factorization.

22999272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1682 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 22999272 is about 4795.7556234654. The cubic root of 22999272 is about 284.3836974678.

The spelling of 22999272 in words is "twenty-two million, nine hundred ninety-nine thousand, two hundred seventy-two".