42320312434 has 8 divisors (see below), whose sum is σ = 63490857948. Its totient is φ = 21156693120.

The previous prime is 42320312417. The next prime is 42320312449. The reversal of 42320312434 is 43421302324.

It can be written as a sum of positive squares in 2 ways, for example, as 41985239409 + 335073025 = 204903^2 + 18305^2 .

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

It is a super-2 number, since 2×42320312434² (a number of 22 digits) contains 22 as substring.

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, 1716247 + ... + 1740730.

Almost surely, 2^42320312434 is an apocalyptic number.

42320312434 is a deficient number, since it is larger than the sum of its proper divisors (21170545514).

42320312434 is a wasteful number, since it uses less digits than its factorization.

42320312434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463100.

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

Adding to 42320312434 its reverse (43421302324), we get a palindrome (85741614758).

The spelling of 42320312434 in words is "forty-two billion, three hundred twenty million, three hundred twelve thousand, four hundred thirty-four".