20084185 has 24 divisors (see below), whose sum is σ = 26860680. Its totient is φ = 14403840.

The previous prime is 20084173. The next prime is 20084201. The reversal of 20084185 is 58148002.

It can be written as a sum of positive squares in 4 ways, for example, as 627264 + 19456921 = 792^2 + 4411^2 .

It is not a de Polignac number, because 20084185 - 2²¹ = 17987033 is a prime.

It is a super-2 number, since 2×20084185² = 806748974228450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53659 + ... + 54031.

It is an arithmetic number, because the mean of its divisors is an integer number (1119195).

Almost surely, 2^20084185 is an apocalyptic number.

It is an amenable number.

20084185 is a deficient number, since it is larger than the sum of its proper divisors (6776495).

20084185 is a wasteful number, since it uses less digits than its factorization.

20084185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 20084185 is about 4481.5382403813. The cubic root of 20084185 is about 271.8220839455.

The spelling of 20084185 in words is "twenty million, eighty-four thousand, one hundred eighty-five".