6845042 has 4 divisors (see below), whose sum is σ = 10267566. Its totient is φ = 3422520.

The previous prime is 6845029. The next prime is 6845057. The reversal of 6845042 is 2405486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2405486 = 2 ⋅1202743.

It can be written as a sum of positive squares in only one way, i.e., 3924361 + 2920681 = 1981^2 + 1709^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6844996 and 6845014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1711259 + ... + 1711262.

Almost surely, 2^6845042 is an apocalyptic number.

6845042 is a deficient number, since it is larger than the sum of its proper divisors (3422524).

6845042 is a wasteful number, since it uses less digits than its factorization.

6845042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422523.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6845042 is about 2616.3031169954. The cubic root of 6845042 is about 189.8710297428.

The spelling of 6845042 in words is "six million, eight hundred forty-five thousand, forty-two".