28314324 has 72 divisors (see below), whose sum is σ = 76145160. Its totient is φ = 8854272.

The previous prime is 28314323. The next prime is 28314331. The reversal of 28314324 is 42341382.

28314324 is a `hidden beast` number, since 28 + 314 + 324 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18766224 + 9548100 = 4332^2 + 3090^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28314323) 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, 38262 + ... + 38994.

Almost surely, 2^28314324 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 28314324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38072580).

28314324 is an abundant number, since it is smaller than the sum of its proper divisors (47830836).

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

28314324 is a wasteful number, since it uses less digits than its factorization.

28314324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 804 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 28314324 is about 5321.1205586793. The cubic root of 28314324 is about 304.7909487465.

The spelling of 28314324 in words is "twenty-eight million, three hundred fourteen thousand, three hundred twenty-four".