20085606 has 24 divisors (see below), whose sum is σ = 44258760. Its totient is φ = 6581376.

The previous prime is 20085589. The next prime is 20085623. The reversal of 20085606 is 60658002.

It is an interprime number because it is at equal distance from previous prime (20085589) and next prime (20085623).

It is a self number, because there is not a number n which added to its sum of digits gives 20085606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8395 + ... + 10518.

It is an arithmetic number, because the mean of its divisors is an integer number (1844115).

Almost surely, 2^20085606 is an apocalyptic number.

20085606 is an abundant number, since it is smaller than the sum of its proper divisors (24173154).

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

20085606 is a wasteful number, since it uses less digits than its factorization.

20085606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18980 (or 18977 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 20085606 is about 4481.6967768915. The cubic root of 20085606 is about 271.8284944632.

The spelling of 20085606 in words is "twenty million, eighty-five thousand, six hundred six".