22028305 has 24 divisors (see below), whose sum is σ = 28987200. Its totient is φ = 16061760.

The previous prime is 22028297. The next prime is 22028317. The reversal of 22028305 is 50382022.

It is not a de Polignac number, because 22028305 - 2³ = 22028297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110596 + ... + 110794.

It is an arithmetic number, because the mean of its divisors is an integer number (1207800).

Almost surely, 2^22028305 is an apocalyptic number.

It is an amenable number.

22028305 is a deficient number, since it is larger than the sum of its proper divisors (6958895).

22028305 is a wasteful number, since it uses less digits than its factorization.

22028305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22028305 is about 4693.4321130703. The cubic root of 22028305 is about 280.3240508438.

The spelling of 22028305 in words is "twenty-two million, twenty-eight thousand, three hundred five".