4042142 has 12 divisors (see below), whose sum is σ = 6566040. Its totient is φ = 1865448.

The previous prime is 4042111. The next prime is 4042153. The reversal of 4042142 is 2412404.

It is a self number, because there is not a number n which added to its sum of digits gives 4042142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5642 + ... + 6317.

It is an arithmetic number, because the mean of its divisors is an integer number (547170).

Almost surely, 2^4042142 is an apocalyptic number.

4042142 is a deficient number, since it is larger than the sum of its proper divisors (2523898).

4042142 is a wasteful number, since it uses less digits than its factorization.

4042142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11987 (or 11974 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4042142 is about 2010.5078960303. The cubic root of 4042142 is about 159.2956276310.

Adding to 4042142 its reverse (2412404), we get a palindrome (6454546).

The spelling of 4042142 in words is "four million, forty-two thousand, one hundred forty-two".