8042842 has 8 divisors (see below), whose sum is σ = 12101076. Its totient is φ = 4009152.

The previous prime is 8042813. The next prime is 8042843. The reversal of 8042842 is 2482408.

It can be written as a sum of positive squares in 2 ways, for example, as 8003241 + 39601 = 2829^2 + 199^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8042842.

It is not an unprimeable number, because it can be changed into a prime (8042843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5293 + ... + 6640.

Almost surely, 2^8042842 is an apocalyptic number.

8042842 is a deficient number, since it is larger than the sum of its proper divisors (4058234).

8042842 is a wasteful number, since it uses less digits than its factorization.

8042842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12272.

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 8042842 is about 2835.9904795327. The cubic root of 8042842 is about 200.3563812515.

The spelling of 8042842 in words is "eight million, forty-two thousand, eight hundred forty-two".