22928500 has 48 divisors (see below), whose sum is σ = 57238272. Its totient is φ = 7860000.

The previous prime is 22928483. The next prime is 22928509. The reversal of 22928500 is 582922.

It is a super-2 number, since 2×22928500² = 1051432224500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22928509) 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, 225 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (1192464).

Almost surely, 2^22928500 is an apocalyptic number.

22928500 is a gapful number since it is divisible by the number (20) 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 22928500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28619136).

22928500 is an abundant number, since it is smaller than the sum of its proper divisors (34309772).

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

22928500 is a wasteful number, since it uses less digits than its factorization.

22928500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577 (or 6565 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 22928500 is about 4788.3713306301. The cubic root of 22928500 is about 284.0917015251.

The spelling of 22928500 in words is "twenty-two million, nine hundred twenty-eight thousand, five hundred".