6842642 has 4 divisors (see below), whose sum is σ = 10263966. Its totient is φ = 3421320.

The previous prime is 6842639. The next prime is 6842651. The reversal of 6842642 is 2462486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4116841 + 2725801 = 2029^2 + 1651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6842599 and 6842608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710659 + ... + 1710662.

Almost surely, 2^6842642 is an apocalyptic number.

6842642 is a deficient number, since it is larger than the sum of its proper divisors (3421324).

6842642 is a wasteful number, since it uses less digits than its factorization.

6842642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421323.

The product of its digits is 18432, while the sum is 32.

The square root of 6842642 is about 2615.8444143335. The cubic root of 6842642 is about 189.8488363684.

The spelling of 6842642 in words is "six million, eight hundred forty-two thousand, six hundred forty-two".