20204890926 has 16 divisors (see below), whose sum is σ = 44083398528. Its totient is φ = 6122694200.

The previous prime is 20204890919. The next prime is 20204890969. The reversal of 20204890926 is 62909840202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153067290 + ... + 153067421.

It is an arithmetic number, because the mean of its divisors is an integer number (2755212408).

Almost surely, 2^20204890926 is an apocalyptic number.

20204890926 is an abundant number, since it is smaller than the sum of its proper divisors (23878507602).

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

20204890926 is a wasteful number, since it uses less digits than its factorization.

20204890926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306134727.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 20204890926 in words is "twenty billion, two hundred four million, eight hundred ninety thousand, nine hundred twenty-six".