22812264 has 48 divisors (see below), whose sum is σ = 62414820. Its totient is φ = 7526400.

The previous prime is 22812259. The next prime is 22812269. The reversal of 22812264 is 46221822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22812259) and next prime (22812269).

It can be written as a sum of positive squares in 2 ways, for example, as 14062500 + 8749764 = 3750^2 + 2958^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22812269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5704 + ... + 8840.

Almost surely, 2^22812264 is an apocalyptic number.

22812264 is a gapful number since it is divisible by the number (24) 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 22812264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31207410).

22812264 is an abundant number, since it is smaller than the sum of its proper divisors (39602556).

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

22812264 is a wasteful number, since it uses less digits than its factorization.

22812264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250 (or 3243 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 22812264 is about 4776.2185879627. The cubic root of 22812264 is about 283.6108204988.

The spelling of 22812264 in words is "twenty-two million, eight hundred twelve thousand, two hundred sixty-four".