28668024 has 96 divisors (see below), whose sum is σ = 96819840. Its totient is φ = 7444800.

The previous prime is 28668023. The next prime is 28668053. The reversal of 28668024 is 42086682.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28668024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28668023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2959 + ... + 8129.

It is an arithmetic number, because the mean of its divisors is an integer number (1008540).

Almost surely, 2^28668024 is an apocalyptic number.

28668024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28668024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48409920).

28668024 is an abundant number, since it is smaller than the sum of its proper divisors (68151816).

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

28668024 is a wasteful number, since it uses less digits than its factorization.

28668024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201 (or 5194 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28668024 is about 5354.2528890593. The cubic root of 28668024 is about 306.0548408694.

The spelling of 28668024 in words is "twenty-eight million, six hundred sixty-eight thousand, twenty-four".