4423641 has 8 divisors (see below), whose sum is σ = 5908224. Its totient is φ = 2944080.

The previous prime is 4423619. The next prime is 4423649. The reversal of 4423641 is 1463244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4423641 - 2¹⁰ = 4422617 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4423649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2040 + ... + 3606.

It is an arithmetic number, because the mean of its divisors is an integer number (738528).

Almost surely, 2^4423641 is an apocalyptic number.

It is an amenable number.

4423641 is a deficient number, since it is larger than the sum of its proper divisors (1484583).

4423641 is a wasteful number, since it uses less digits than its factorization.

4423641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its digits is 2304, while the sum is 24.

The square root of 4423641 is about 2103.2453494540. The cubic root of 4423641 is about 164.1572084645.

Adding to 4423641 its reverse (1463244), we get a palindrome (5886885).

The spelling of 4423641 in words is "four million, four hundred twenty-three thousand, six hundred forty-one".