7040043 has 12 divisors (see below), whose sum is σ = 10361520. Its totient is φ = 4604496.

The previous prime is 7040041. The next prime is 7040053. The reversal of 7040043 is 3400407.

It is not a de Polignac number, because 7040043 - 2¹ = 7040041 is a prime.

7040043 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7039998 and 7040025.

It is not an unprimeable number, because it can be changed into a prime (7040041) 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 11 ways as a sum of consecutive naturals, for example, 6903 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (863460).

Almost surely, 2^7040043 is an apocalyptic number.

7040043 is a deficient number, since it is larger than the sum of its proper divisors (3321477).

7040043 is a wasteful number, since it uses less digits than its factorization.

7040043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14818 (or 14815 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 7040043 is about 2653.3079353893. The cubic root of 7040043 is about 191.6571844920.

The spelling of 7040043 in words is "seven million, forty thousand, forty-three".