28328030 has 8 divisors (see below), whose sum is σ = 50990472. Its totient is φ = 11331208.

The previous prime is 28327979. The next prime is 28328063. The reversal of 28328030 is 3082382.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416392 + ... + 1416411.

It is an arithmetic number, because the mean of its divisors is an integer number (6373809).

Almost surely, 2^28328030 is an apocalyptic number.

28328030 is a deficient number, since it is larger than the sum of its proper divisors (22662442).

28328030 is a wasteful number, since it uses less digits than its factorization.

28328030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832810.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28328030 is about 5322.4082894870. The cubic root of 28328030 is about 304.8401204527.

The spelling of 28328030 in words is "twenty-eight million, three hundred twenty-eight thousand, thirty".