22266624 has 72 divisors (see below), whose sum is σ = 60175360. Its totient is φ = 7308288.

The previous prime is 22266623. The next prime is 22266631. The reversal of 22266624 is 42666222.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22266591 and 22266600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22266623) 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, 60489 + ... + 60855.

Almost surely, 2^22266624 is an apocalyptic number.

22266624 is a gapful number since it is divisible by the number (24) 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 22266624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30087680).

22266624 is an abundant number, since it is smaller than the sum of its proper divisors (37908736).

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

22266624 is an equidigital number, since it uses as much as digits as its factorization.

22266624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 451 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 22266624 is about 4718.7523774828. The cubic root of 22266624 is about 281.3313467412.

The spelling of 22266624 in words is "twenty-two million, two hundred sixty-six thousand, six hundred twenty-four".