4239403 has 4 divisors (see below), whose sum is σ = 4845040. Its totient is φ = 3633768.

The previous prime is 4239401. The next prime is 4239419. The reversal of 4239403 is 3049324.

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 4239403 - 2¹ = 4239401 is a prime.

It is a Duffinian number.

4239403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4239401) 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, 302808 + ... + 302821.

It is an arithmetic number, because the mean of its divisors is an integer number (1211260).

Almost surely, 2^4239403 is an apocalyptic number.

4239403 is a deficient number, since it is larger than the sum of its proper divisors (605637).

4239403 is an equidigital number, since it uses as much as digits as its factorization.

4239403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605636.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 4239403 is about 2058.9810586793. The cubic root of 4239403 is about 161.8458499112.

The spelling of 4239403 in words is "four million, two hundred thirty-nine thousand, four hundred three".