20440223341 has 4 divisors (see below), whose sum is σ = 20440540512. Its totient is φ = 20439906172.

The previous prime is 20440223339. The next prime is 20440223357. The reversal of 20440223341 is 14332204402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20440223341 - 2¹ = 20440223339 is a prime.

It is a super-2 number, since 2×20440223341² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440223311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23641 + ... + 203566.

It is an arithmetic number, because the mean of its divisors is an integer number (5110135128).

Almost surely, 2^20440223341 is an apocalyptic number.

It is an amenable number.

20440223341 is a deficient number, since it is larger than the sum of its proper divisors (317171).

20440223341 is an equidigital number, since it uses as much as digits as its factorization.

20440223341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317170.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20440223341 its reverse (14332204402), we get a palindrome (34772427743).

The spelling of 20440223341 in words is "twenty billion, four hundred forty million, two hundred twenty-three thousand, three hundred forty-one".