28822344 has 64 divisors (see below), whose sum is σ = 78200640. Its totient is φ = 8816640.

The previous prime is 28822309. The next prime is 28822349. The reversal of 28822344 is 44322882.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28822349) 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, 15867 + ... + 17589.

It is an arithmetic number, because the mean of its divisors is an integer number (1221885).

Almost surely, 2^28822344 is an apocalyptic number.

28822344 is a gapful number since it is divisible by the number (24) 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 28822344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39100320).

28822344 is an abundant number, since it is smaller than the sum of its proper divisors (49378296).

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

28822344 is a wasteful number, since it uses less digits than its factorization.

28822344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1786 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 28822344 is about 5368.6445216647. The cubic root of 28822344 is about 306.6030229195.

The spelling of 28822344 in words is "twenty-eight million, eight hundred twenty-two thousand, three hundred forty-four".