20364085 has 32 divisors (see below), whose sum is σ = 29901312. Its totient is φ = 13009920.

The previous prime is 20364077. The next prime is 20364089. The reversal of 20364085 is 58046302.

It is not a de Polignac number, because 20364085 - 2³ = 20364077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32697 + ... + 33313.

It is an arithmetic number, because the mean of its divisors is an integer number (934416).

Almost surely, 2^20364085 is an apocalyptic number.

It is an amenable number.

20364085 is a deficient number, since it is larger than the sum of its proper divisors (9537227).

20364085 is a wasteful number, since it uses less digits than its factorization.

20364085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20364085 is about 4512.6583074724. The cubic root of 20364085 is about 273.0789978326.

The spelling of 20364085 in words is "twenty million, three hundred sixty-four thousand, eighty-five".