42431223340 has 96 divisors (see below), whose sum is σ = 103054307328. Its totient is φ = 14528160000.

The previous prime is 42431223311. The next prime is 42431223349. The reversal of 42431223340 is 4332213424.

It is a junction number, because it is equal to n+sod(n) for n = 42431223299 and 42431223308.

It is not an unprimeable number, because it can be changed into a prime (42431223349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168265 + ... + 336415.

It is an arithmetic number, because the mean of its divisors is an integer number (1073482368).

Almost surely, 2^42431223340 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 42431223340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51527153664).

42431223340 is an abundant number, since it is smaller than the sum of its proper divisors (60623083988).

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

42431223340 is a wasteful number, since it uses less digits than its factorization.

42431223340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168239 (or 168237 counting only the distinct ones).

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

Adding to 42431223340 its reverse (4332213424), we get a palindrome (46763436764).

The spelling of 42431223340 in words is "forty-two billion, four hundred thirty-one million, two hundred twenty-three thousand, three hundred forty".