28320058 has 32 divisors (see below), whose sum is σ = 47589696. Its totient is φ = 12555648.

The previous prime is 28320041. The next prime is 28320091. The reversal of 28320058 is 85002382.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81441 + ... + 81787.

It is an arithmetic number, because the mean of its divisors is an integer number (1487178).

Almost surely, 2^28320058 is an apocalyptic number.

28320058 is a deficient number, since it is larger than the sum of its proper divisors (19269638).

28320058 is a wasteful number, since it uses less digits than its factorization.

28320058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28320058 is about 5321.6593276909. The cubic root of 28320058 is about 304.8115220004.

The spelling of 28320058 in words is "twenty-eight million, three hundred twenty thousand, fifty-eight".