28432384 has 24 divisors (see below), whose sum is σ = 56854980. Its totient is φ = 14215168.

The previous prime is 28432373. The next prime is 28432403. The reversal of 28432384 is 48323482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4894 + ... + 8989.

Almost surely, 2^28432384 is an apocalyptic number.

It is an amenable number.

28432384 is a deficient number, since it is larger than the sum of its proper divisors (28422596).

28432384 is an equidigital number, since it uses as much as digits as its factorization.

28432384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13905 (or 13885 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 28432384 is about 5332.2025467906. The cubic root of 28432384 is about 305.2139822407.

The spelling of 28432384 in words is "twenty-eight million, four hundred thirty-two thousand, three hundred eighty-four".