28249848 has 96 divisors (see below), whose sum is σ = 85166640. Its totient is φ = 8386560.

The previous prime is 28249843. The next prime is 28249877. The reversal of 28249848 is 84894282.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28249843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41640 + ... + 42312.

Almost surely, 2^28249848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28249848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42583320).

28249848 is an abundant number, since it is smaller than the sum of its proper divisors (56916792).

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

28249848 is a wasteful number, since it uses less digits than its factorization.

28249848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 742 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 28249848 is about 5315.0586073909. The cubic root of 28249848 is about 304.5594212136.

The spelling of 28249848 in words is "twenty-eight million, two hundred forty-nine thousand, eight hundred forty-eight".