28024328 has 16 divisors (see below), whose sum is σ = 52961280. Its totient is φ = 13901328.

The previous prime is 28024319. The next prime is 28024331. The reversal of 28024328 is 82342082.

It is a self number, because there is not a number n which added to its sum of digits gives 28024328.

It is a congruent number.

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, 12776 + ... + 14807.

It is an arithmetic number, because the mean of its divisors is an integer number (3310080).

Almost surely, 2^28024328 is an apocalyptic number.

It is an amenable number.

28024328 is a deficient number, since it is larger than the sum of its proper divisors (24936952).

28024328 is a wasteful number, since it uses less digits than its factorization.

28024328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27716 (or 27712 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 28024328 is about 5293.8009029430. The cubic root of 28024328 is about 303.7468171298.

The spelling of 28024328 in words is "twenty-eight million, twenty-four thousand, three hundred twenty-eight".