28276248 has 192 divisors, whose sum is σ = 96526080. Its totient is φ = 6716160.

The previous prime is 28276217. The next prime is 28276267. The reversal of 28276248 is 84267282.

It is a Harshad number since it is a multiple of its sum of digits (39).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264211 + ... + 264317.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

Almost surely, 2^28276248 is an apocalyptic number.

28276248 is a gapful number since it is divisible by the number (28) 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 28276248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48263040).

28276248 is an abundant number, since it is smaller than the sum of its proper divisors (68249832).

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

28276248 is a wasteful number, since it uses less digits than its factorization.

28276248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 143 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 28276248 is about 5317.5415372144. The cubic root of 28276248 is about 304.6542637934.

The spelling of 28276248 in words is "twenty-eight million, two hundred seventy-six thousand, two hundred forty-eight".