42040035242 has 8 divisors (see below), whose sum is σ = 63144023232. Its totient is φ = 20992027500.

The previous prime is 42040035229. The next prime is 42040035259. The reversal of 42040035242 is 24253004024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993184 + ... + 13996187.

It is an arithmetic number, because the mean of its divisors is an integer number (7893002904).

Almost surely, 2^42040035242 is an apocalyptic number.

42040035242 is a deficient number, since it is larger than the sum of its proper divisors (21103987990).

42040035242 is a wasteful number, since it uses less digits than its factorization.

42040035242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27990124.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 42040035242 its reverse (24253004024), we get a palindrome (66293039266).

The spelling of 42040035242 in words is "forty-two billion, forty million, thirty-five thousand, two hundred forty-two".