28330774 has 8 divisors (see below), whose sum is σ = 42598368. Its totient is φ = 14131320.

The previous prime is 28330769. The next prime is 28330777. The reversal of 28330774 is 47703382.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28330777) 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 3 ways as a sum of consecutive naturals, for example, 15982 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (5324796).

Almost surely, 2^28330774 is an apocalyptic number.

28330774 is a deficient number, since it is larger than the sum of its proper divisors (14267594).

28330774 is a wasteful number, since it uses less digits than its factorization.

28330774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34070.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 28330774 is about 5322.6660612892. Note that the first 3 decimals coincide. The cubic root of 28330774 is about 304.8499629336.

The spelling of 28330774 in words is "twenty-eight million, three hundred thirty thousand, seven hundred seventy-four".