28230834 has 8 divisors (see below), whose sum is σ = 56461680. Its totient is φ = 9410276.

The previous prime is 28230793. The next prime is 28230847. The reversal of 28230834 is 43803282.

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

28230834 is an admirable number.

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, 2352564 + ... + 2352575.

It is an arithmetic number, because the mean of its divisors is an integer number (7057710).

Almost surely, 2^28230834 is an apocalyptic number.

28230834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28230834 is a wasteful number, since it uses less digits than its factorization.

28230834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705144.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 28230834 is about 5313.2696148417. The cubic root of 28230834 is about 304.4910763911.

The spelling of 28230834 in words is "twenty-eight million, two hundred thirty thousand, eight hundred thirty-four".