22406624 has 48 divisors (see below), whose sum is σ = 46947600. Its totient is φ = 10497024.

The previous prime is 22406543. The next prime is 22406627. The reversal of 22406624 is 42660422.

It is a junction number, because it is equal to n+sod(n) for n = 22406593 and 22406602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83162 + ... + 83430.

It is an arithmetic number, because the mean of its divisors is an integer number (978075).

Almost surely, 2^22406624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22406624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23473800).

22406624 is an abundant number, since it is smaller than the sum of its proper divisors (24540976).

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

22406624 is a wasteful number, since it uses less digits than its factorization.

22406624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 22406624 is about 4733.5635624759. The cubic root of 22406624 is about 281.9197330362.

The spelling of 22406624 in words is "twenty-two million, four hundred six thousand, six hundred twenty-four".