20305022 has 8 divisors (see below), whose sum is σ = 30537000. Its totient is φ = 10126024.

The previous prime is 20305013. The next prime is 20305039. The reversal of 20305022 is 22050302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20304988 and 20305006.

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, 12272 + ... + 13827.

It is an arithmetic number, because the mean of its divisors is an integer number (3817125).

Almost surely, 2^20305022 is an apocalyptic number.

20305022 is a deficient number, since it is larger than the sum of its proper divisors (10231978).

20305022 is a wasteful number, since it uses less digits than its factorization.

20305022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26490.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 20305022 is about 4506.1094083477. The cubic root of 20305022 is about 272.8147338413.

Adding to 20305022 its reverse (22050302), we get a palindrome (42355324).

The spelling of 20305022 in words is "twenty million, three hundred five thousand, twenty-two".