28196304 has 80 divisors (see below), whose sum is σ = 78566400. Its totient is φ = 8684928.

The previous prime is 28196303. The next prime is 28196327. The reversal of 28196304 is 40369182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28196303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38857 + ... + 39575.

It is an arithmetic number, because the mean of its divisors is an integer number (982080).

Almost surely, 2^28196304 is an apocalyptic number.

28196304 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 28196304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39283200).

28196304 is an abundant number, since it is smaller than the sum of its proper divisors (50370096).

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

28196304 is a wasteful number, since it uses less digits than its factorization.

28196304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 28196304 is about 5310.0192090048. The cubic root of 28196304 is about 304.3668816132.

The spelling of 28196304 in words is "twenty-eight million, one hundred ninety-six thousand, three hundred four".