28068016 has 40 divisors (see below), whose sum is σ = 57774080. Its totient is φ = 13172544.

The previous prime is 28067999. The next prime is 28068049. The reversal of 28068016 is 61086082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38245 + ... + 38971.

It is an arithmetic number, because the mean of its divisors is an integer number (1444352).

Almost surely, 2^28068016 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 28068016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28887040).

28068016 is an abundant number, since it is smaller than the sum of its proper divisors (29706064).

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

28068016 is a wasteful number, since it uses less digits than its factorization.

28068016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 28068016 is about 5297.9256317921. The cubic root of 28068016 is about 303.9045753128.

The spelling of 28068016 in words is "twenty-eight million, sixty-eight thousand, sixteen".