4042361 has 4 divisors (see below), whose sum is σ = 4151652. Its totient is φ = 3933072.

The previous prime is 4042343. The next prime is 4042391. The reversal of 4042361 is 1632404.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2706025 + 1336336 = 1645^2 + 1156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4042331) 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, 54590 + ... + 54663.

It is an arithmetic number, because the mean of its divisors is an integer number (1037913).

Almost surely, 2^4042361 is an apocalyptic number.

It is an amenable number.

4042361 is a deficient number, since it is larger than the sum of its proper divisors (109291).

4042361 is a wasteful number, since it uses less digits than its factorization.

4042361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109290.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4042361 is about 2010.5623591423. The cubic root of 4042361 is about 159.2985044153.

Adding to 4042361 its reverse (1632404), we get a palindrome (5674765).

The spelling of 4042361 in words is "four million, forty-two thousand, three hundred sixty-one".