9842642 has 8 divisors (see below), whose sum is σ = 14863500. Its totient is φ = 4888144.

The previous prime is 9842621. The next prime is 9842647. The reversal of 9842642 is 2462489.

It can be written as a sum of positive squares in 2 ways, for example, as 6713281 + 3129361 = 2591^2 + 1769^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9842647) 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, 16217 + ... + 16812.

Almost surely, 2^9842642 is an apocalyptic number.

9842642 is a deficient number, since it is larger than the sum of its proper divisors (5020858).

9842642 is a wasteful number, since it uses less digits than its factorization.

9842642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33180.

The product of its digits is 27648, while the sum is 35.

The square root of 9842642 is about 3137.2985194272. The cubic root of 9842642 is about 214.3074307303.

The spelling of 9842642 in words is "nine million, eight hundred forty-two thousand, six hundred forty-two".