28330746 has 8 divisors (see below), whose sum is σ = 56661504. Its totient is φ = 9443580.

The previous prime is 28330741. The next prime is 28330769. The reversal of 28330746 is 64703382.

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

28330746 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28330741) by changing a digit.

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, 2360890 + ... + 2360901.

It is an arithmetic number, because the mean of its divisors is an integer number (7082688).

Almost surely, 2^28330746 is an apocalyptic number.

28330746 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.

28330746 is a wasteful number, since it uses less digits than its factorization.

28330746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721796.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 28330746 is about 5322.6634310277. The cubic root of 28330746 is about 304.8498625034.

The spelling of 28330746 in words is "twenty-eight million, three hundred thirty thousand, seven hundred forty-six".