8439607042 has 8 divisors (see below), whose sum is σ = 12744373500. Its totient is φ = 4191482544.

The previous prime is 8439607013. The next prime is 8439607049. The reversal of 8439607042 is 2407069348.

It can be written as a sum of positive squares in 2 ways, for example, as 7850137201 + 589469841 = 88601^2 + 24279^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8439607042.

It is not an unprimeable number, because it can be changed into a prime (8439607049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14160117 + ... + 14160712.

Almost surely, 2^8439607042 is an apocalyptic number.

8439607042 is a deficient number, since it is larger than the sum of its proper divisors (4304766458).

8439607042 is a wasteful number, since it uses less digits than its factorization.

8439607042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28320980.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 8439607042 is about 91867.3339223470. Note that the first 3 decimals coincide. The cubic root of 8439607042 is about 2035.9826618062.

The spelling of 8439607042 in words is "eight billion, four hundred thirty-nine million, six hundred seven thousand, forty-two".