842260642 has 8 divisors (see below), whose sum is σ = 1274571756. Its totient is φ = 417403392.

The previous prime is 842260619. The next prime is 842260649. The reversal of 842260642 is 246062248.

It can be written as a sum of positive squares in 2 ways, for example, as 841638121 + 622521 = 29011^2 + 789^2 .

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 = 842260598 and 842260607.

It is not an unprimeable number, because it can be changed into a prime (842260649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863183 + ... + 1863634.

Almost surely, 2^842260642 is an apocalyptic number.

842260642 is a deficient number, since it is larger than the sum of its proper divisors (432311114).

842260642 is a wasteful number, since it uses less digits than its factorization.

842260642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726932.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 842260642 is about 29021.7270678366. The cubic root of 842260642 is about 944.3844678140.

The spelling of 842260642 in words is "eight hundred forty-two million, two hundred sixty thousand, six hundred forty-two".