22026624 has 64 divisors (see below), whose sum is σ = 61608000. Its totient is φ = 6953472.

The previous prime is 22026601. The next prime is 22026649. The reversal of 22026624 is 42662022.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22026594 and 22026603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5787 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (962625).

Almost surely, 2^22026624 is an apocalyptic number.

22026624 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 22026624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30804000).

22026624 is an abundant number, since it is smaller than the sum of its proper divisors (39581376).

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

22026624 is a wasteful number, since it uses less digits than its factorization.

22026624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055 (or 3043 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22026624 is about 4693.2530296160. The cubic root of 22026624 is about 280.3169200679.

Adding to 22026624 its reverse (42662022), we get a palindrome (64688646).

The spelling of 22026624 in words is "twenty-two million, twenty-six thousand, six hundred twenty-four".