28876344 has 64 divisors (see below), whose sum is σ = 85363200. Its totient is φ = 7964544.

The previous prime is 28876327. The next prime is 28876357. The reversal of 28876344 is 44367882.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 28876296 and 28876305.

It is a congruent number.

It is an unprimeable number.

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, 1909 + ... + 7835.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^28876344 is an apocalyptic number.

28876344 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 28876344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42681600).

28876344 is an abundant number, since it is smaller than the sum of its proper divisors (56486856).

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

28876344 is a wasteful number, since it uses less digits than its factorization.

28876344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972 (or 5968 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 28876344 is about 5373.6713706739. The cubic root of 28876344 is about 306.7943817967.

The spelling of 28876344 in words is "twenty-eight million, eight hundred seventy-six thousand, three hundred forty-four".