28324392 has 32 divisors (see below), whose sum is σ = 70951200. Its totient is φ = 9422784.

The previous prime is 28324381. The next prime is 28324393. The reversal of 28324392 is 29342382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28324393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16938 + ... + 18534.

It is an arithmetic number, because the mean of its divisors is an integer number (2217225).

Almost surely, 2^28324392 is an apocalyptic number.

It is an amenable number.

28324392 is an abundant number, since it is smaller than the sum of its proper divisors (42626808).

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

28324392 is a wasteful number, since it uses less digits than its factorization.

28324392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345 (or 2341 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 28324392 is about 5322.0665159316. The cubic root of 28324392 is about 304.8270702943.

The spelling of 28324392 in words is "twenty-eight million, three hundred twenty-four thousand, three hundred ninety-two".