22625428 has 48 divisors (see below), whose sum is σ = 48384000. Its totient is φ = 9041760.

The previous prime is 22625417. The next prime is 22625461. The reversal of 22625428 is 82452622.

It is a self number, because there is not a number n which added to its sum of digits gives 22625428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37473 + ... + 38071.

It is an arithmetic number, because the mean of its divisors is an integer number (1008000).

Almost surely, 2^22625428 is an apocalyptic number.

22625428 is a gapful number since it is divisible by the number (28) 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 22625428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24192000).

22625428 is an abundant number, since it is smaller than the sum of its proper divisors (25758572).

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

22625428 is a wasteful number, since it uses less digits than its factorization.

22625428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 698 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 22625428 is about 4756.6193877585. The cubic root of 22625428 is about 282.8344247402.

The spelling of 22625428 in words is "twenty-two million, six hundred twenty-five thousand, four hundred twenty-eight".