28322592 has 72 divisors (see below), whose sum is σ = 77072688. Its totient is φ = 9106560.

The previous prime is 28322573. The next prime is 28322599. The reversal of 28322592 is 29522382.

It is not an unprimeable number, because it can be changed into a prime (28322599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92103 + ... + 92409.

It is an arithmetic number, because the mean of its divisors is an integer number (1070454).

Almost surely, 2^28322592 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 28322592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38536344).

28322592 is an abundant number, since it is smaller than the sum of its proper divisors (48750096).

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

28322592 is a wasteful number, since it uses less digits than its factorization.

28322592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 343 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 28322592 is about 5321.8974060010. The cubic root of 28322592 is about 304.8206129583.

The spelling of 28322592 in words is "twenty-eight million, three hundred twenty-two thousand, five hundred ninety-two".