28344888 has 96 divisors (see below), whose sum is σ = 90221040. Its totient is φ = 7925760.

The previous prime is 28344871. The next prime is 28344907. The reversal of 28344888 is 88844382.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8920 + ... + 11672.

Almost surely, 2^28344888 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 28344888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45110520).

28344888 is an abundant number, since it is smaller than the sum of its proper divisors (61876152).

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

28344888 is a wasteful number, since it uses less digits than its factorization.

28344888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789 (or 2782 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 28344888 is about 5323.9917355308. The cubic root of 28344888 is about 304.9005785418.

The spelling of 28344888 in words is "twenty-eight million, three hundred forty-four thousand, eight hundred eighty-eight".