20446222 has 16 divisors (see below), whose sum is σ = 31456512. Its totient is φ = 9962680.

The previous prime is 20446213. The next prime is 20446243. The reversal of 20446222 is 22264402.

It is a junction number, because it is equal to n+sod(n) for n = 20446193 and 20446202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41397 + ... + 41887.

It is an arithmetic number, because the mean of its divisors is an integer number (1966032).

Almost surely, 2^20446222 is an apocalyptic number.

20446222 is a deficient number, since it is larger than the sum of its proper divisors (11010290).

20446222 is a wasteful number, since it uses less digits than its factorization.

20446222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20446222 is about 4521.7498825123. The cubic root of 20446222 is about 273.4456531577.

The spelling of 20446222 in words is "twenty million, four hundred forty-six thousand, two hundred twenty-two".