28248264 has 96 divisors (see below), whose sum is σ = 86617440. Its totient is φ = 8553600.

The previous prime is 28248257. The next prime is 28248277. The reversal of 28248264 is 46284282.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20724 + ... + 22044.

It is an arithmetic number, because the mean of its divisors is an integer number (902265).

Almost surely, 2^28248264 is an apocalyptic number.

28248264 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 28248264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43308720).

28248264 is an abundant number, since it is smaller than the sum of its proper divisors (58369176).

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

28248264 is a wasteful number, since it uses less digits than its factorization.

28248264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353 (or 1337 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 28248264 is about 5314.9095947156. The cubic root of 28248264 is about 304.5537287801.

The spelling of 28248264 in words is "twenty-eight million, two hundred forty-eight thousand, two hundred sixty-four".