20441001442 has 4 divisors (see below), whose sum is σ = 30661502166. Its totient is φ = 10220500720.

The previous prime is 20441001437. The next prime is 20441001443. The reversal of 20441001442 is 24410014402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20326490041 + 114511401 = 142571^2 + 10701^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20441001443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110250359 + ... + 5110250362.

Almost surely, 2^20441001442 is an apocalyptic number.

20441001442 is a deficient number, since it is larger than the sum of its proper divisors (10220500724).

20441001442 is a wasteful number, since it uses less digits than its factorization.

20441001442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220500723.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20441001442 its reverse (24410014402), we get a palindrome (44851015844).

The spelling of 20441001442 in words is "twenty billion, four hundred forty-one million, one thousand, four hundred forty-two".