22025328 has 80 divisors (see below), whose sum is σ = 62662656. Its totient is φ = 6624000.

The previous prime is 22025327. The next prime is 22025371. The reversal of 22025328 is 82352022.

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 = 22025298 and 22025307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22025327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28953 + ... + 29703.

Almost surely, 2^22025328 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 22025328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31331328).

22025328 is an abundant number, since it is smaller than the sum of its proper divisors (40637328).

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

22025328 is a wasteful number, since it uses less digits than its factorization.

22025328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22025328 is about 4693.1149570408. The cubic root of 22025328 is about 280.3114222084.

The spelling of 22025328 in words is "twenty-two million, twenty-five thousand, three hundred twenty-eight".