28295316 has 72 divisors (see below), whose sum is σ = 83516160. Its totient is φ = 7909056.

The previous prime is 28295299. The next prime is 28295321. The reversal of 28295316 is 61359282.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10650 + ... + 13038.

Almost surely, 2^28295316 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 28295316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41758080).

28295316 is an abundant number, since it is smaller than the sum of its proper divisors (55220844).

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

28295316 is a wasteful number, since it uses less digits than its factorization.

28295316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2448 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 28295316 is about 5319.3341688599. The cubic root of 28295316 is about 304.7227292914.

The spelling of 28295316 in words is "twenty-eight million, two hundred ninety-five thousand, three hundred sixteen".