22287204 has 96 divisors (see below), whose sum is σ = 62496000. Its totient is φ = 6842880.

The previous prime is 22287203. The next prime is 22287227. The reversal of 22287204 is 40278222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22287203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111897 + ... + 112095.

It is an arithmetic number, because the mean of its divisors is an integer number (651000).

Almost surely, 2^22287204 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 22287204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31248000).

22287204 is an abundant number, since it is smaller than the sum of its proper divisors (40208796).

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

22287204 is a wasteful number, since it uses less digits than its factorization.

22287204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22287204 is about 4720.9325349977. The cubic root of 22287204 is about 281.4179938576.

The spelling of 22287204 in words is "twenty-two million, two hundred eighty-seven thousand, two hundred four".