8042506 has 8 divisors (see below), whose sum is σ = 12087684. Its totient is φ = 4013280.

The previous prime is 8042477. The next prime is 8042509. The reversal of 8042506 is 6052408.

It can be written as a sum of positive squares in 2 ways, for example, as 7241481 + 801025 = 2691^2 + 895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8042509) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2635 + ... + 4798.

Almost surely, 2^8042506 is an apocalyptic number.

8042506 is a deficient number, since it is larger than the sum of its proper divisors (4045178).

8042506 is a wasteful number, since it uses less digits than its factorization.

8042506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7976.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8042506 is about 2835.9312403512. The cubic root of 8042506 is about 200.3535911647.

The spelling of 8042506 in words is "eight million, forty-two thousand, five hundred six".