20136198 has 16 divisors (see below), whose sum is σ = 40316976. Its totient is φ = 6704640.

The previous prime is 20136197. The next prime is 20136217. The reversal of 20136198 is 89163102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8238 + ... + 10398.

It is an arithmetic number, because the mean of its divisors is an integer number (2519811).

Almost surely, 2^20136198 is an apocalyptic number.

20136198 is an abundant number, since it is smaller than the sum of its proper divisors (20180778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20136198 is a wasteful number, since it uses less digits than its factorization.

20136198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 20136198 is about 4487.3375179498. The cubic root of 20136198 is about 272.0565320069.

The spelling of 20136198 in words is "twenty million, one hundred thirty-six thousand, one hundred ninety-eight".