8000042 has 8 divisors (see below), whose sum is σ = 12012132. Its totient is φ = 3996000.

The previous prime is 8000033. The next prime is 8000051. The reversal of 8000042 is 2400008.

It is an interprime number because it is at equal distance from previous prime (8000033) and next prime (8000051).

It can be written as a sum of positive squares in 2 ways, for example, as 7890481 + 109561 = 2809^2 + 331^2 .

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

8000042 is a modest number, since divided by 42 gives 8 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 7999990 and 8000026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2492 + ... + 4712.

Almost surely, 2^8000042 is an apocalyptic number.

8000042 is a deficient number, since it is larger than the sum of its proper divisors (4012090).

8000042 is a wasteful number, since it uses less digits than its factorization.

8000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 8000042 is about 2828.4345493576. The cubic root of 8000042 is about 200.0003499994. Note that the first 3 decimals are identical.

The spelling of 8000042 in words is "eight million, forty-two", and thus it is an aban number and an uban number.