28468028 has 6 divisors (see below), whose sum is σ = 49819056. Its totient is φ = 14234012.

The previous prime is 28468019. The next prime is 28468039. The reversal of 28468028 is 82086482.

It is a junction number, because it is equal to n+sod(n) for n = 28467982 and 28468000.

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 as a sum of consecutive naturals, namely, 3558500 + ... + 3558507.

It is an arithmetic number, because the mean of its divisors is an integer number (8303176).

Almost surely, 2^28468028 is an apocalyptic number.

It is an amenable number.

28468028 is a deficient number, since it is larger than the sum of its proper divisors (21351028).

28468028 is a wasteful number, since it uses less digits than its factorization.

28468028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7117011 (or 7117009 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 28468028 is about 5335.5438335750. The cubic root of 28468028 is about 305.3414718925.

The spelling of 28468028 in words is "twenty-eight million, four hundred sixty-eight thousand, twenty-eight".