20446085 has 16 divisors (see below), whose sum is σ = 27421632. Its totient is φ = 14505600.

The previous prime is 20446079. The next prime is 20446093. The reversal of 20446085 is 58064402.

It is not a de Polignac number, because 20446085 - 2²⁴ = 3668869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2279 + ... + 6788.

It is an arithmetic number, because the mean of its divisors is an integer number (1713852).

Almost surely, 2^20446085 is an apocalyptic number.

It is an amenable number.

20446085 is a deficient number, since it is larger than the sum of its proper divisors (6975547).

20446085 is a wasteful number, since it uses less digits than its factorization.

20446085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9124.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 20446085 is about 4521.7347334845. The cubic root of 20446085 is about 273.4450424151.

The spelling of 20446085 in words is "twenty million, four hundred forty-six thousand, eighty-five".