4042369 has 4 divisors (see below), whose sum is σ = 4172800. Its totient is φ = 3911940.

The previous prime is 4042343. The next prime is 4042391. The reversal of 4042369 is 9632404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042369 is a prime.

It is a super-2 number, since 2×4042369² = 32681494264322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042309) 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, 65169 + ... + 65230.

It is an arithmetic number, because the mean of its divisors is an integer number (1043200).

Almost surely, 2^4042369 is an apocalyptic number.

It is an amenable number.

4042369 is a deficient number, since it is larger than the sum of its proper divisors (130431).

4042369 is a wasteful number, since it uses less digits than its factorization.

4042369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130430.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 4042369 is about 2010.5643486345. The cubic root of 4042369 is about 159.2986095014.

The spelling of 4042369 in words is "four million, forty-two thousand, three hundred sixty-nine".