4042999 has 4 divisors (see below), whose sum is σ = 4119336. Its totient is φ = 3966664.

The previous prime is 4042993. The next prime is 4043023. The reversal of 4042999 is 9992404.

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

It is a cyclic number.

It is not a de Polignac number, because 4042999 - 2⁵ = 4042967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042993) 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, 38089 + ... + 38194.

It is an arithmetic number, because the mean of its divisors is an integer number (1029834).

Almost surely, 2^4042999 is an apocalyptic number.

4042999 is a deficient number, since it is larger than the sum of its proper divisors (76337).

4042999 is an equidigital number, since it uses as much as digits as its factorization.

4042999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76336.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 4042999 is about 2010.7210149596. The cubic root of 4042999 is about 159.3068845921.

It can be divided in two parts, 4042 and 999, that added together give a square (5041 = 71²).

The spelling of 4042999 in words is "four million, forty-two thousand, nine hundred ninety-nine".