7318042 has 8 divisors (see below), whose sum is σ = 11078100. Its totient is φ = 3625344.

The previous prime is 7318039. The next prime is 7318061. The reversal of 7318042 is 2408137.

It can be written as a sum of positive squares in 2 ways, for example, as 7123561 + 194481 = 2669^2 + 441^2 .

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 = 7317998 and 7318016.

It is an unprimeable number.

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, 16567 + ... + 17002.

Almost surely, 2^7318042 is an apocalyptic number.

7318042 is a deficient number, since it is larger than the sum of its proper divisors (3760058).

7318042 is a wasteful number, since it uses less digits than its factorization.

7318042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33680.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 7318042 is about 2705.1879786810. The cubic root of 7318042 is about 194.1474239886.

The spelling of 7318042 in words is "seven million, three hundred eighteen thousand, forty-two".