4094042 has 8 divisors (see below), whose sum is σ = 6502356. Its totient is φ = 1926592.

The previous prime is 4094021. The next prime is 4094047. The reversal of 4094042 is 2404904.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3031081 + 1062961 = 1741^2 + 1031^2 .

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

It is a super-2 number, since 2×4094042² = 33522359795528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4093999 and 4094017.

It is not an unprimeable number, because it can be changed into a prime (4094047) 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 3 ways as a sum of consecutive naturals, for example, 60173 + ... + 60240.

Almost surely, 2^4094042 is an apocalyptic number.

4094042 is a deficient number, since it is larger than the sum of its proper divisors (2408314).

4094042 is a wasteful number, since it uses less digits than its factorization.

4094042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120432.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4094042 is about 2023.3739150241. The cubic root of 4094042 is about 159.9745011449.

Adding to 4094042 its reverse (2404904), we get a palindrome (6498946).

The spelling of 4094042 in words is "four million, ninety-four thousand, forty-two".