4320231 has 8 divisors (see below), whose sum is σ = 5916144. Its totient is φ = 2802240.

The previous prime is 4320223. The next prime is 4320241. The reversal of 4320231 is 1320234.

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

It is not a de Polignac number, because 4320231 - 2³ = 4320223 is a prime.

It is a super-2 number, since 2×4320231² = 37328791786722, which contains 22 as substring.

4320231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320241) 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, 19350 + ... + 19571.

It is an arithmetic number, because the mean of its divisors is an integer number (739518).

Almost surely, 2^4320231 is an apocalyptic number.

4320231 is a deficient number, since it is larger than the sum of its proper divisors (1595913).

4320231 is a wasteful number, since it uses less digits than its factorization.

4320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38961.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4320231 is about 2078.5165383032. The cubic root of 4320231 is about 162.8679598628.

Adding to 4320231 its reverse (1320234), we get a palindrome (5640465).

The spelling of 4320231 in words is "four million, three hundred twenty thousand, two hundred thirty-one".