20340424104 has 512 divisors, whose sum is σ = 71705088000. Its totient is φ = 4734858240.

The previous prime is 20340424081. The next prime is 20340424183. The reversal of 20340424104 is 40142404302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 43555279 + ... + 43555745.

It is an arithmetic number, because the mean of its divisors is an integer number (140049000).

Almost surely, 2^20340424104 is an apocalyptic number.

20340424104 is a gapful number since it is divisible by the number (24) 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 20340424104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35852544000).

20340424104 is an abundant number, since it is smaller than the sum of its proper divisors (51364663896).

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

20340424104 is a wasteful number, since it uses less digits than its factorization.

20340424104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20340424104 its reverse (40142404302), we get a palindrome (60482828406).

It can be divided in two parts, 20340 and 424104, that added together give a palindrome (444444).

The spelling of 20340424104 in words is "twenty billion, three hundred forty million, four hundred twenty-four thousand, one hundred four".