20064836 has 24 divisors (see below), whose sum is σ = 40323360. Its totient is φ = 8640000.

The previous prime is 20064833. The next prime is 20064851. The reversal of 20064836 is 63846002.

It is a junction number, because it is equal to n+sod(n) for n = 20064799 and 20064808.

It is not an unprimeable number, because it can be changed into a prime (20064833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11165 + ... + 12836.

It is an arithmetic number, because the mean of its divisors is an integer number (1680140).

Almost surely, 2^20064836 is an apocalyptic number.

It is an amenable number.

20064836 is an abundant number, since it is smaller than the sum of its proper divisors (20258524).

20064836 is a wasteful number, since it uses less digits than its factorization.

20064836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24035 (or 24033 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 20064836 is about 4479.3789748134. The cubic root of 20064836 is about 271.7347652352.

The spelling of 20064836 in words is "twenty million, sixty-four thousand, eight hundred thirty-six".