20085358 has 4 divisors (see below), whose sum is σ = 30128040. Its totient is φ = 10042678.

The previous prime is 20085353. The next prime is 20085383. The reversal of 20085358 is 85358002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85358002 = 2 ⋅42679001.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021338 + ... + 5021341.

It is an arithmetic number, because the mean of its divisors is an integer number (7532010).

Almost surely, 2^20085358 is an apocalyptic number.

20085358 is a deficient number, since it is larger than the sum of its proper divisors (10042682).

20085358 is a wasteful number, since it uses less digits than its factorization.

20085358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042681.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 20085358 is about 4481.6691087139. The cubic root of 20085358 is about 271.8273756895.

It can be divided in two parts, 200 and 85358, that added together give a palindrome (85558).

The spelling of 20085358 in words is "twenty million, eighty-five thousand, three hundred fifty-eight".