20085854 has 8 divisors (see below), whose sum is σ = 31438800. Its totient is φ = 9606256.

The previous prime is 20085853. The next prime is 20085881. The reversal of 20085854 is 45858002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20085854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218279 + ... + 218370.

It is an arithmetic number, because the mean of its divisors is an integer number (3929850).

Almost surely, 2^20085854 is an apocalyptic number.

20085854 is a deficient number, since it is larger than the sum of its proper divisors (11352946).

20085854 is a wasteful number, since it uses less digits than its factorization.

20085854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436674.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 20085854 is about 4481.7244448984. The cubic root of 20085854 is about 271.8296132277.

The spelling of 20085854 in words is "twenty million, eighty-five thousand, eight hundred fifty-four".