28384344 has 112 divisors (see below), whose sum is σ = 82893120. Its totient is φ = 9097920.

The previous prime is 28384303. The next prime is 28384379. The reversal of 28384344 is 44348382.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 = 28384299 and 28384308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 180714 + ... + 180870.

Almost surely, 2^28384344 is an apocalyptic number.

28384344 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 28384344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41446560).

28384344 is an abundant number, since it is smaller than the sum of its proper divisors (54508776).

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

28384344 is a wasteful number, since it uses less digits than its factorization.

28384344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 193 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 28384344 is about 5327.6959372697. The cubic root of 28384344 is about 305.0419865158.

The spelling of 28384344 in words is "twenty-eight million, three hundred eighty-four thousand, three hundred forty-four".