22586872 has 64 divisors (see below), whose sum is σ = 54282240. Its totient is φ = 8553600.

The previous prime is 22586869. The next prime is 22586881. The reversal of 22586872 is 27868522.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 22297 + ... + 23287.

It is an arithmetic number, because the mean of its divisors is an integer number (848160).

Almost surely, 2^22586872 is an apocalyptic number.

22586872 is a gapful number since it is divisible by the number (22) 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 22586872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27141120).

22586872 is an abundant number, since it is smaller than the sum of its proper divisors (31695368).

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

22586872 is a wasteful number, since it uses less digits than its factorization.

22586872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1048 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 22586872 is about 4752.5647812523. The cubic root of 22586872 is about 282.6736739788.

The spelling of 22586872 in words is "twenty-two million, five hundred eighty-six thousand, eight hundred seventy-two".