28170338 has 8 divisors (see below), whose sum is σ = 48292032. Its totient is φ = 12072996.

The previous prime is 28170323. The next prime is 28170341. The reversal of 28170338 is 83307182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006070 + ... + 1006097.

It is an arithmetic number, because the mean of its divisors is an integer number (6036504).

Almost surely, 2^28170338 is an apocalyptic number.

28170338 is a deficient number, since it is larger than the sum of its proper divisors (20121694).

28170338 is a wasteful number, since it uses less digits than its factorization.

28170338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012176.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 28170338 is about 5307.5736452733. The cubic root of 28170338 is about 304.2734223462.

The spelling of 28170338 in words is "twenty-eight million, one hundred seventy thousand, three hundred thirty-eight".