28068090 has 16 divisors (see below), whose sum is σ = 67363488. Its totient is φ = 7484816.

The previous prime is 28068083. The next prime is 28068091. The reversal of 28068090 is 9086082.

It is not an unprimeable number, because it can be changed into a prime (28068091) 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 7 ways as a sum of consecutive naturals, for example, 467772 + ... + 467831.

It is an arithmetic number, because the mean of its divisors is an integer number (4210218).

Almost surely, 2^28068090 is an apocalyptic number.

28068090 is an abundant number, since it is smaller than the sum of its proper divisors (39295398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28068090 is a wasteful number, since it uses less digits than its factorization.

28068090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935613.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 28068090 is about 5297.9326156530. The cubic root of 28068090 is about 303.9048423892.

The spelling of 28068090 in words is "twenty-eight million, sixty-eight thousand, ninety".