20341340344 has 64 divisors (see below), whose sum is σ = 43520833440. Its totient is φ = 8829788160.

The previous prime is 20341340333. The next prime is 20341340347. The reversal of 20341340344 is 44304314302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341340347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3198672 + ... + 3205024.

Almost surely, 2^20341340344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20341340344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21760416720).

20341340344 is an abundant number, since it is smaller than the sum of its proper divisors (23179493096).

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

20341340344 is a wasteful number, since it uses less digits than its factorization.

20341340344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8200 (or 8196 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20341340344 its reverse (44304314302), we get a palindrome (64645654646).

The spelling of 20341340344 in words is "twenty billion, three hundred forty-one million, three hundred forty thousand, three hundred forty-four".