22725024 has 72 divisors (see below), whose sum is σ = 69406848. Its totient is φ = 6491520.

The previous prime is 22725023. The next prime is 22725097. The reversal of 22725024 is 42052722.

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 = 22724985 and 22725003.

It is not an unprimeable number, because it can be changed into a prime (22725023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2289 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (963984).

Almost surely, 2^22725024 is an apocalyptic number.

22725024 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 22725024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34703424).

22725024 is an abundant number, since it is smaller than the sum of its proper divisors (46681824).

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

22725024 is a wasteful number, since it uses less digits than its factorization.

22725024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858 (or 4843 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22725024 is about 4767.0770918876. The cubic root of 22725024 is about 283.2488249312.

Adding to 22725024 its reverse (42052722), we get a palindrome (64777746).

The spelling of 22725024 in words is "twenty-two million, seven hundred twenty-five thousand, twenty-four".