22845284 has 48 divisors (see below), whose sum is σ = 50338176. Its totient is φ = 8886240.

The previous prime is 22845283. The next prime is 22845287. The reversal of 22845284 is 48254822.

It is not an unprimeable number, because it can be changed into a prime (22845281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36962 + ... + 37574.

It is an arithmetic number, because the mean of its divisors is an integer number (1048712).

Almost surely, 2^22845284 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 22845284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25169088).

22845284 is an abundant number, since it is smaller than the sum of its proper divisors (27492892).

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

22845284 is a wasteful number, since it uses less digits than its factorization.

22845284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 633 counting only the distinct ones).

The product of its digits is 40960, while the sum is 35.

The square root of 22845284 is about 4779.6740474639. The cubic root of 22845284 is about 283.7475936324.

The spelling of 22845284 in words is "twenty-two million, eight hundred forty-five thousand, two hundred eighty-four".