4120042 has 4 divisors (see below), whose sum is σ = 6180066. Its totient is φ = 2060020.

The previous prime is 4120033. The next prime is 4120079. The reversal of 4120042 is 2400214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4076361 + 43681 = 2019^2 + 209^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030009 + ... + 1030012.

Almost surely, 2^4120042 is an apocalyptic number.

4120042 is a deficient number, since it is larger than the sum of its proper divisors (2060024).

4120042 is a wasteful number, since it uses less digits than its factorization.

4120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060023.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4120042 is about 2029.7886589495. The cubic root of 4120042 is about 160.3124363748.

Adding to 4120042 its reverse (2400214), we get a palindrome (6520256).

The spelling of 4120042 in words is "four million, one hundred twenty thousand, forty-two".