42040340330 has 32 divisors (see below), whose sum is σ = 76409880768. Its totient is φ = 16652563200.

The previous prime is 42040340311. The next prime is 42040340333. The reversal of 42040340330 is 3304304024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42040340296 and 42040340305.

It is not an unprimeable number, because it can be changed into a prime (42040340333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1307345 + ... + 1339115.

It is an arithmetic number, because the mean of its divisors is an integer number (2387808774).

Almost surely, 2^42040340330 is an apocalyptic number.

42040340330 is a deficient number, since it is larger than the sum of its proper divisors (34369540438).

42040340330 is a wasteful number, since it uses less digits than its factorization.

42040340330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33062.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 42040340330 its reverse (3304304024), we get a palindrome (45344644354).

The spelling of 42040340330 in words is "forty-two billion, forty million, three hundred forty thousand, three hundred thirty".