20085898 has 8 divisors (see below), whose sum is σ = 34432992. Its totient is φ = 8608236.

The previous prime is 20085889. The next prime is 20085899. The reversal of 20085898 is 89858002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20085898.

It is not an unprimeable number, because it can be changed into a prime (20085899) 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, 717340 + ... + 717367.

It is an arithmetic number, because the mean of its divisors is an integer number (4304124).

Almost surely, 2^20085898 is an apocalyptic number.

20085898 is a deficient number, since it is larger than the sum of its proper divisors (14347094).

20085898 is a wasteful number, since it uses less digits than its factorization.

20085898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434716.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 20085898 is about 4481.7293537205. The cubic root of 20085898 is about 271.8298117172.

The spelling of 20085898 in words is "twenty million, eighty-five thousand, eight hundred ninety-eight".