20200434342 has 64 divisors (see below), whose sum is σ = 46420107264. Its totient is φ = 5800430240.

The previous prime is 20200434311. The next prime is 20200434389. The reversal of 20200434342 is 24343400202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100243 + ... + 224609.

It is an arithmetic number, because the mean of its divisors is an integer number (725314176).

Almost surely, 2^20200434342 is an apocalyptic number.

20200434342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20200434342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23210053632).

20200434342 is an abundant number, since it is smaller than the sum of its proper divisors (26219672922).

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

20200434342 is a wasteful number, since it uses less digits than its factorization.

20200434342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124513.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20200434342 its reverse (24343400202), we get a palindrome (44543834544).

The spelling of 20200434342 in words is "twenty billion, two hundred million, four hundred thirty-four thousand, three hundred forty-two".