28296384 has 28 divisors (see below), whose sum is σ = 74868024. Its totient is φ = 9432064.

The previous prime is 28296361. The next prime is 28296403. The reversal of 28296384 is 48369282.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73497 + ... + 73880.

It is an arithmetic number, because the mean of its divisors is an integer number (2673858).

Almost surely, 2^28296384 is an apocalyptic number.

28296384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28296384 is an abundant number, since it is smaller than the sum of its proper divisors (46571640).

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

28296384 is a wasteful number, since it uses less digits than its factorization.

28296384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147392 (or 147382 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 28296384 is about 5319.4345564167. The cubic root of 28296384 is about 304.7265631389.

It can be divided in two parts, 28296 and 384, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 28296384 in words is "twenty-eight million, two hundred ninety-six thousand, three hundred eighty-four".