42404335340 has 24 divisors (see below), whose sum is σ = 92119764240. Its totient is φ = 16376846528.

The previous prime is 42404335331. The next prime is 42404335343. The reversal of 42404335340 is 4353340424.

It is a junction number, because it is equal to n+sod(n) for n = 42404335297 and 42404335306.

It is not an unprimeable number, because it can be changed into a prime (42404335343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36554882 + ... + 36556041.

It is an arithmetic number, because the mean of its divisors is an integer number (3838323510).

Almost surely, 2^42404335340 is an apocalyptic number.

It is an amenable number.

42404335340 is an abundant number, since it is smaller than the sum of its proper divisors (49715428900).

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

42404335340 is a wasteful number, since it uses less digits than its factorization.

42404335340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73110961 (or 73110959 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 42404335340 its reverse (4353340424), we get a palindrome (46757675764).

The spelling of 42404335340 in words is "forty-two billion, four hundred four million, three hundred thirty-five thousand, three hundred forty".