20441040312 has 192 divisors, whose sum is σ = 68665501440. Its totient is φ = 4996992000.

The previous prime is 20441040299. The next prime is 20441040331. The reversal of 20441040312 is 21304014402.

It is a super-2 number, since 2×20441040312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173437 + ... + 266387.

It is an arithmetic number, because the mean of its divisors is an integer number (357632820).

Almost surely, 2^20441040312 is an apocalyptic number.

20441040312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20441040312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34332750720).

20441040312 is an abundant number, since it is smaller than the sum of its proper divisors (48224461128).

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

20441040312 is a wasteful number, since it uses less digits than its factorization.

20441040312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93002 (or 92991 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20441040312 its reverse (21304014402), we get a palindrome (41745054714).

The spelling of 20441040312 in words is "twenty billion, four hundred forty-one million, forty thousand, three hundred twelve".