20244133 has 16 divisors (see below), whose sum is σ = 25038720. Its totient is φ = 15938496.

The previous prime is 20244121. The next prime is 20244149. The reversal of 20244133 is 33144202.

It is not a de Polignac number, because 20244133 - 2⁹ = 20243621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20244133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24066 + ... + 24892.

It is an arithmetic number, because the mean of its divisors is an integer number (1564920).

Almost surely, 2^20244133 is an apocalyptic number.

It is an amenable number.

20244133 is a deficient number, since it is larger than the sum of its proper divisors (4794587).

20244133 is a wasteful number, since it uses less digits than its factorization.

20244133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20244133 is about 4499.3480638866. The cubic root of 20244133 is about 272.5417628105.

Adding to 20244133 its reverse (33144202), we get a palindrome (53388335).

The spelling of 20244133 in words is "twenty million, two hundred forty-four thousand, one hundred thirty-three".