22286724 has 24 divisors (see below), whose sum is σ = 54264000. Its totient is φ = 7105824.

The previous prime is 22286723. The next prime is 22286741. The reversal of 22286724 is 42768222.

It is not an unprimeable number, because it can be changed into a prime (22286723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40099 + ... + 40650.

It is an arithmetic number, because the mean of its divisors is an integer number (2261000).

Almost surely, 2^22286724 is an apocalyptic number.

It is an amenable number.

22286724 is an abundant number, since it is smaller than the sum of its proper divisors (31977276).

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

22286724 is a wasteful number, since it uses less digits than its factorization.

22286724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80779 (or 80777 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 22286724 is about 4720.8816973104. The cubic root of 22286724 is about 281.4159735412.

The spelling of 22286724 in words is "twenty-two million, two hundred eighty-six thousand, seven hundred twenty-four".