4231312 has 20 divisors (see below), whose sum is σ = 8231740. Its totient is φ = 2107008.

The previous prime is 4231309. The next prime is 4231313. The reversal of 4231312 is 2131324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 2876416 = 1164^2 + 1696^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a d-powerful number, because it can be written as 4¹¹ + 2¹¹ + 3 + 1 + 3⁷ + 1 + 2¹⁵ .

It is not an unprimeable number, because it can be changed into a prime (4231313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5614 + ... + 6322.

It is an arithmetic number, because the mean of its divisors is an integer number (411587).

Almost surely, 2^4231312 is an apocalyptic number.

It is an amenable number.

4231312 is a deficient number, since it is larger than the sum of its proper divisors (4000428).

4231312 is a wasteful number, since it uses less digits than its factorization.

4231312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1084 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 4231312 is about 2057.0153135064. The cubic root of 4231312 is about 161.7428221403.

Adding to 4231312 its reverse (2131324), we get a palindrome (6362636).

The spelling of 4231312 in words is "four million, two hundred thirty-one thousand, three hundred twelve".