20092018 has 16 divisors (see below), whose sum is σ = 31559616. Its totient is φ = 9575280.

The previous prime is 20092001. The next prime is 20092019. The reversal of 20092018 is 81029002.

It is a self number, because there is not a number n which added to its sum of digits gives 20092018.

It is not an unprimeable number, because it can be changed into a prime (20092019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16573 + ... + 17743.

It is an arithmetic number, because the mean of its divisors is an integer number (1972476).

Almost surely, 2^20092018 is an apocalyptic number.

20092018 is a deficient number, since it is larger than the sum of its proper divisors (11467598).

20092018 is a wasteful number, since it uses less digits than its factorization.

20092018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 20092018 is about 4482.4120738727. The cubic root of 20092018 is about 271.8574169806.

The spelling of 20092018 in words is "twenty million, ninety-two thousand, eighteen".