20430374104 has 96 divisors (see below), whose sum is σ = 46781347680. Its totient is φ = 8192065536.

The previous prime is 20430374071. The next prime is 20430374177. The reversal of 20430374104 is 40147303402.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2796184 + ... + 2803480.

It is an arithmetic number, because the mean of its divisors is an integer number (487305705).

Almost surely, 2^20430374104 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 20430374104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23390673840).

20430374104 is an abundant number, since it is smaller than the sum of its proper divisors (26350973576).

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

20430374104 is a wasteful number, since it uses less digits than its factorization.

20430374104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7517 (or 7496 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 20430374104 its reverse (40147303402), we get a palindrome (60577677506).

The spelling of 20430374104 in words is "twenty billion, four hundred thirty million, three hundred seventy-four thousand, one hundred four".