28512342 has 24 divisors (see below), whose sum is σ = 62197200. Its totient is φ = 9439440.

The previous prime is 28512313. The next prime is 28512347. The reversal of 28512342 is 24321582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28512347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2634 + ... + 7997.

It is an arithmetic number, because the mean of its divisors is an integer number (2591550).

Almost surely, 2^28512342 is an apocalyptic number.

28512342 is an abundant number, since it is smaller than the sum of its proper divisors (33684858).

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

28512342 is a wasteful number, since it uses less digits than its factorization.

28512342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10788 (or 10785 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 28512342 is about 5339.6949351063. The cubic root of 28512342 is about 305.4998236548.

The spelling of 28512342 in words is "twenty-eight million, five hundred twelve thousand, three hundred forty-two".