20441203240 has 64 divisors (see below), whose sum is σ = 49617081360. Its totient is φ = 7550300160.

The previous prime is 20441203157. The next prime is 20441203271. The reversal of 20441203240 is 4230214402.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12736928164 + 7704275076 = 112858^2 + 87774^2 .

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, 247551 + ... + 319630.

Almost surely, 2^20441203240 is an apocalyptic number.

20441203240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20441203240 is an abundant number, since it is smaller than the sum of its proper divisors (29175878120).

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

20441203240 is a wasteful number, since it uses less digits than its factorization.

20441203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567262 (or 567258 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20441203240 its reverse (4230214402), we get a palindrome (24671417642).

The spelling of 20441203240 in words is "twenty billion, four hundred forty-one million, two hundred three thousand, two hundred forty".