42340434220 has 96 divisors (see below), whose sum is σ = 105398052480. Its totient is φ = 13984358400.

The previous prime is 42340434163. The next prime is 42340434247. The reversal of 42340434220 is 2243404324.

It is a happy number.

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

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, 482716 + ... + 563644.

It is an arithmetic number, because the mean of its divisors is an integer number (1097896380).

Almost surely, 2^42340434220 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 42340434220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52699026240).

42340434220 is an abundant number, since it is smaller than the sum of its proper divisors (63057618260).

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

42340434220 is a wasteful number, since it uses less digits than its factorization.

42340434220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81083 (or 81081 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 42340434220 its reverse (2243404324), we get a palindrome (44583838544).

The spelling of 42340434220 in words is "forty-two billion, three hundred forty million, four hundred thirty-four thousand, two hundred twenty".