28318152 has 96 divisors (see below), whose sum is σ = 77762880. Its totient is φ = 8574720.

The previous prime is 28318133. The next prime is 28318163. The reversal of 28318152 is 25181382.

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, 464202 + ... + 464262.

It is an arithmetic number, because the mean of its divisors is an integer number (810030).

Almost surely, 2^28318152 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 28318152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38881440).

28318152 is an abundant number, since it is smaller than the sum of its proper divisors (49444728).

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

28318152 is a wasteful number, since it uses less digits than its factorization.

28318152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 118 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 28318152 is about 5321.4802451949. The cubic root of 28318152 is about 304.8046836930.

The spelling of 28318152 in words is "twenty-eight million, three hundred eighteen thousand, one hundred fifty-two".