20442243341 has 8 divisors (see below), whose sum is σ = 22551668664. Its totient is φ = 18409524480.

The previous prime is 20442243337. The next prime is 20442243377. The reversal of 20442243341 is 14334224402.

It can be written as a sum of positive squares in 4 ways, for example, as 626050441 + 19816192900 = 25021^2 + 140770^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20442243341 - 2² = 20442243337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442248341) 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, 19176056 + ... + 19177121.

It is an arithmetic number, because the mean of its divisors is an integer number (2818958583).

Almost surely, 2^20442243341 is an apocalyptic number.

It is an amenable number.

20442243341 is a deficient number, since it is larger than the sum of its proper divisors (2109425323).

20442243341 is a wasteful number, since it uses less digits than its factorization.

20442243341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38353231.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20442243341 its reverse (14334224402), we get a palindrome (34776467743).

The spelling of 20442243341 in words is "twenty billion, four hundred forty-two million, two hundred forty-three thousand, three hundred forty-one".