22868472 has 96 divisors (see below), whose sum is σ = 65220480. Its totient is φ = 6625920.

The previous prime is 22868471. The next prime is 22868477. The reversal of 22868472 is 27486822.

It is a super-2 number, since 2×22868472² = 1045934023229568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22868472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22868471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221973 + ... + 222075.

It is an arithmetic number, because the mean of its divisors is an integer number (679380).

Almost surely, 2^22868472 is an apocalyptic number.

22868472 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 22868472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32610240).

22868472 is an abundant number, since it is smaller than the sum of its proper divisors (42352008).

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

22868472 is a wasteful number, since it uses less digits than its factorization.

22868472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 148 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 22868472 is about 4782.0991206791. The cubic root of 22868472 is about 283.8435625914.

The spelling of 22868472 in words is "twenty-two million, eight hundred sixty-eight thousand, four hundred seventy-two".