4239231 has 4 divisors (see below), whose sum is σ = 5652312. Its totient is φ = 2826152.

The previous prime is 4239229. The next prime is 4239247. The reversal of 4239231 is 1329324.

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 4239231 - 2¹ = 4239229 is a prime.

It is a super-2 number, since 2×4239231² = 35942158942722, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239211) 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, 706536 + ... + 706541.

It is an arithmetic number, because the mean of its divisors is an integer number (1413078).

Almost surely, 2^4239231 is an apocalyptic number.

4239231 is a deficient number, since it is larger than the sum of its proper divisors (1413081).

4239231 is a wasteful number, since it uses less digits than its factorization.

4239231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413080.

The product of its digits is 1296, while the sum is 24.

The square root of 4239231 is about 2058.9392900229. The cubic root of 4239231 is about 161.8436610918.

The spelling of 4239231 in words is "four million, two hundred thirty-nine thousand, two hundred thirty-one".