28344830 has 8 divisors (see below), whose sum is σ = 51020712. Its totient is φ = 11337928.

The previous prime is 28344821. The next prime is 28344857. The reversal of 28344830 is 3844382.

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

It is a congruent 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, 1417232 + ... + 1417251.

It is an arithmetic number, because the mean of its divisors is an integer number (6377589).

Almost surely, 2^28344830 is an apocalyptic number.

28344830 is a deficient number, since it is larger than the sum of its proper divisors (22675882).

28344830 is a wasteful number, since it uses less digits than its factorization.

28344830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834490.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 28344830 is about 5323.9862884872. The cubic root of 28344830 is about 304.9003705767.

The spelling of 28344830 in words is "twenty-eight million, three hundred forty-four thousand, eight hundred thirty".