20085458 has 16 divisors (see below), whose sum is σ = 32175360. Its totient is φ = 9382800.

The previous prime is 20085397. The next prime is 20085467. The reversal of 20085458 is 85458002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3788 + ... + 7383.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^20085458 is an apocalyptic number.

20085458 is a deficient number, since it is larger than the sum of its proper divisors (12089902).

20085458 is a wasteful number, since it uses less digits than its factorization.

20085458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11233.

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

The square root of 20085458 is about 4481.6802652577. The cubic root of 20085458 is about 271.8278268090.

It can be divided in two parts, 200 and 85458, that added together give a palindrome (85658).

The spelling of 20085458 in words is "twenty million, eighty-five thousand, four hundred fifty-eight".