28324860 has 48 divisors (see below), whose sum is σ = 79560096. Its totient is φ = 7529472.

The previous prime is 28324859. The next prime is 28324861. The reversal of 28324860 is 6842382.

It is an interprime number because it is at equal distance from previous prime (28324859) and next prime (28324861).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28324861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26904 + ... + 27936.

It is an arithmetic number, because the mean of its divisors is an integer number (1657502).

Almost surely, 2^28324860 is an apocalyptic number.

28324860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28324860 is an abundant number, since it is smaller than the sum of its proper divisors (51235236).

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

28324860 is a wasteful number, since it uses less digits than its factorization.

28324860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 28324860 is about 5322.1104836333. The cubic root of 28324860 is about 304.8287491569.

The spelling of 28324860 in words is "twenty-eight million, three hundred twenty-four thousand, eight hundred sixty".