28328510 has 16 divisors (see below), whose sum is σ = 58275936. Its totient is φ = 9712608.

The previous prime is 28328501. The next prime is 28328527. The reversal of 28328510 is 1582382.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 202277 + ... + 202416.

It is an arithmetic number, because the mean of its divisors is an integer number (3642246).

Almost surely, 2^28328510 is an apocalyptic number.

28328510 is an abundant number, since it is smaller than the sum of its proper divisors (29947426).

28328510 is a wasteful number, since it uses less digits than its factorization.

28328510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404707.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28328510 is about 5322.4533816653. The cubic root of 28328510 is about 304.8418422154.

The spelling of 28328510 in words is "twenty-eight million, three hundred twenty-eight thousand, five hundred ten".