20365946 has 32 divisors (see below), whose sum is σ = 33454080. Its totient is φ = 9273600.

The previous prime is 20365901. The next prime is 20365957. The reversal of 20365946 is 64956302.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 84386 + ... + 84626.

It is an arithmetic number, because the mean of its divisors is an integer number (1045440).

Almost surely, 2^20365946 is an apocalyptic number.

20365946 is a deficient number, since it is larger than the sum of its proper divisors (13088134).

20365946 is a wasteful number, since it uses less digits than its factorization.

20365946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 20365946 is about 4512.8645005141. The cubic root of 20365946 is about 273.0873161462.

The spelling of 20365946 in words is "twenty million, three hundred sixty-five thousand, nine hundred forty-six".