20446206 has 32 divisors (see below), whose sum is σ = 47236608. Its totient is φ = 5831040.

The previous prime is 20446193. The next prime is 20446213. The reversal of 20446206 is 60264402.

It is a congruent number.

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, 7990 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (1476144).

Almost surely, 2^20446206 is an apocalyptic number.

20446206 is an abundant number, since it is smaller than the sum of its proper divisors (26790402).

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

20446206 is a wasteful number, since it uses less digits than its factorization.

20446206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18256.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20446206 is about 4521.7481132854. The cubic root of 20446206 is about 273.4455818302.

The spelling of 20446206 in words is "twenty million, four hundred forty-six thousand, two hundred six".