20441340340 has 48 divisors (see below), whose sum is σ = 43908845904. Its totient is φ = 7991193600.

The previous prime is 20441340331. The next prime is 20441340371. The reversal of 20441340340 is 4304314402.

It can be written as a sum of positive squares in 8 ways, for example, as 3071154724 + 17370185616 = 55418^2 + 131796^2 .

It is a super-2 number, since 2×20441340340² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138180 + ... + 244900.

It is an arithmetic number, because the mean of its divisors is an integer number (914767623).

Almost surely, 2^20441340340 is an apocalyptic number.

20441340340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20441340340 is an abundant number, since it is smaller than the sum of its proper divisors (23467505564).

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

20441340340 is a wasteful number, since it uses less digits than its factorization.

20441340340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106948 (or 106946 counting only the distinct ones).

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

Adding to 20441340340 its reverse (4304314402), we get a palindrome (24745654742).

The spelling of 20441340340 in words is "twenty billion, four hundred forty-one million, three hundred forty thousand, three hundred forty".