28024680 has 64 divisors (see below), whose sum is σ = 84427200. Its totient is φ = 7441920.

The previous prime is 28024679. The next prime is 28024729. The reversal of 28024680 is 8642082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48795 + ... + 49365.

It is an arithmetic number, because the mean of its divisors is an integer number (1319175).

Almost surely, 2^28024680 is an apocalyptic number.

28024680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28024680 is an abundant number, since it is smaller than the sum of its proper divisors (56402520).

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

28024680 is a wasteful number, since it uses less digits than its factorization.

28024680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28024680 is about 5293.8341492722. The cubic root of 28024680 is about 303.7480888633.

The spelling of 28024680 in words is "twenty-eight million, twenty-four thousand, six hundred eighty".