22287152 has 40 divisors (see below), whose sum is σ = 45830400. Its totient is φ = 10469952.

The previous prime is 22287107. The next prime is 22287163. The reversal of 22287152 is 25178222.

It is a super-2 number, since 2×22287152² = 993434288542208, which contains 22 as substring.

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, 50549 + ... + 50987.

It is an arithmetic number, because the mean of its divisors is an integer number (1145760).

Almost surely, 2^22287152 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 22287152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22915200).

22287152 is an abundant number, since it is smaller than the sum of its proper divisors (23543248).

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

22287152 is a wasteful number, since it uses less digits than its factorization.

22287152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 627 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 22287152 is about 4720.9270276080. The cubic root of 22287152 is about 281.4177749914.

The spelling of 22287152 in words is "twenty-two million, two hundred eighty-seven thousand, one hundred fifty-two".