20036946 has 32 divisors (see below), whose sum is σ = 41948928. Its totient is φ = 6373760.

The previous prime is 20036923. The next prime is 20036971. The reversal of 20036946 is 64963002.

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, 10696 + ... + 12428.

It is an arithmetic number, because the mean of its divisors is an integer number (1310904).

Almost surely, 2^20036946 is an apocalyptic number.

20036946 is an abundant number, since it is smaller than the sum of its proper divisors (21911982).

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

20036946 is a wasteful number, since it uses less digits than its factorization.

20036946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20036946 is about 4476.2647374792. The cubic root of 20036946 is about 271.6088036316.

Adding to 20036946 its reverse (64963002), we get a palindrome (84999948).

The spelling of 20036946 in words is "twenty million, thirty-six thousand, nine hundred forty-six".