22816528 has 40 divisors (see below), whose sum is σ = 50925312. Its totient is φ = 9700608.

The previous prime is 22816513. The next prime is 22816537. The reversal of 22816528 is 82561822.

It is a junction number, because it is equal to n+sod(n) for n = 22816493 and 22816502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14601 + ... + 16087.

Almost surely, 2^22816528 is an apocalyptic number.

22816528 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 22816528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25462656).

22816528 is an abundant number, since it is smaller than the sum of its proper divisors (28108784).

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

22816528 is a wasteful number, since it uses less digits than its factorization.

22816528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1633 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 22816528 is about 4776.6649453358. The cubic root of 22816528 is about 283.6284899593.

The spelling of 22816528 in words is "twenty-two million, eight hundred sixteen thousand, five hundred twenty-eight".