870770042 has 8 divisors (see below), whose sum is σ = 1314474996. Its totient is φ = 432611712.

The previous prime is 870770011. The next prime is 870770051. The reversal of 870770042 is 240077078.

It can be written as a sum of positive squares in 2 ways, for example, as 870309001 + 461041 = 29501^2 + 679^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 870769984 and 870770011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386263 + ... + 1386890.

Almost surely, 2^870770042 is an apocalyptic number.

870770042 is a deficient number, since it is larger than the sum of its proper divisors (443704954).

870770042 is a wasteful number, since it uses less digits than its factorization.

870770042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773312.

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 870770042 is about 29508.8129547767. The cubic root of 870770042 is about 954.9218404095.

The spelling of 870770042 in words is "eight hundred seventy million, seven hundred seventy thousand, forty-two".