20086842 has 16 divisors (see below), whose sum is σ = 40219200. Its totient is φ = 6688032.

The previous prime is 20086831. The next prime is 20086849. The reversal of 20086842 is 24868002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20086849) 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, 7198 + ... + 9590.

It is an arithmetic number, because the mean of its divisors is an integer number (2513700).

Almost surely, 2^20086842 is an apocalyptic number.

20086842 is an abundant number, since it is smaller than the sum of its proper divisors (20132358).

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

20086842 is a wasteful number, since it uses less digits than its factorization.

20086842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20086842 is about 4481.8346689721. The cubic root of 20086842 is about 271.8340701497.

The spelling of 20086842 in words is "twenty million, eighty-six thousand, eight hundred forty-two".