22838928 has 80 divisors (see below), whose sum is σ = 68198016. Its totient is φ = 6451200.

The previous prime is 22838923. The next prime is 22838929. The reversal of 22838928 is 82983822.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 22838928.

It is not an unprimeable number, because it can be changed into a prime (22838923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33600 + ... + 34272.

Almost surely, 2^22838928 is an apocalyptic number.

22838928 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 22838928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34099008).

22838928 is an abundant number, since it is smaller than the sum of its proper divisors (45359088).

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

22838928 is a wasteful number, since it uses less digits than its factorization.

22838928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 786 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 22838928 is about 4779.0091023140. The cubic root of 22838928 is about 283.7212765015.

It can be divided in two parts, 2283 and 8928, that added together give a palindrome (11211).

The spelling of 22838928 in words is "twenty-two million, eight hundred thirty-eight thousand, nine hundred twenty-eight".