7844042 has 8 divisors (see below), whose sum is σ = 11804832. Its totient is φ = 3909100.

The previous prime is 7844041. The next prime is 7844047. The reversal of 7844042 is 2404487.

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 = 7843996 and 7844014.

It is not an unprimeable number, because it can be changed into a prime (7844041) 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, 5684 + ... + 6927.

It is an arithmetic number, because the mean of its divisors is an integer number (1475604).

Almost surely, 2^7844042 is an apocalyptic number.

7844042 is a deficient number, since it is larger than the sum of its proper divisors (3960790).

7844042 is a wasteful number, since it uses less digits than its factorization.

7844042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12924.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 7844042 is about 2800.7216927071. The cubic root of 7844042 is about 198.6918118756.

The spelling of 7844042 in words is "seven million, eight hundred forty-four thousand, forty-two".