28015848 has 96 divisors (see below), whose sum is σ = 90561600. Its totient is φ = 8001504.

The previous prime is 28015843. The next prime is 28015907. The reversal of 28015848 is 84851082.

It is a Cunningham number, because it is equal to 5293²-1.

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

It is not an unprimeable number, because it can be changed into a prime (28015843) 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, 9261 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (943350).

Almost surely, 2^28015848 is an apocalyptic number.

28015848 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 28015848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45280800).

28015848 is an abundant number, since it is smaller than the sum of its proper divisors (62545752).

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

28015848 is a wasteful number, since it uses less digits than its factorization.

28015848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 28015848 is about 5292.9999055356. Note that the first 4 decimals coincide. The cubic root of 28015848 is about 303.7161766941.

It can be divided in two parts, 2801 and 5848, that added together give a square (8649 = 93²).

The spelling of 28015848 in words is "twenty-eight million, fifteen thousand, eight hundred forty-eight".