22628424 has 96 divisors (see below), whose sum is σ = 70096320. Its totient is φ = 5960448.

The previous prime is 22628401. The next prime is 22628429. The reversal of 22628424 is 42482622.

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 = 22628391 and 22628400.

It is not an unprimeable number, because it can be changed into a prime (22628429) 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, 27994 + ... + 28790.

It is an arithmetic number, because the mean of its divisors is an integer number (730170).

Almost surely, 2^22628424 is an apocalyptic number.

22628424 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 22628424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35048160).

22628424 is an abundant number, since it is smaller than the sum of its proper divisors (47467896).

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

22628424 is a wasteful number, since it uses less digits than its factorization.

22628424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 822 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 22628424 is about 4756.9343068830. The cubic root of 22628424 is about 282.8469082542.

The spelling of 22628424 in words is "twenty-two million, six hundred twenty-eight thousand, four hundred twenty-four".