4321312 has 24 divisors (see below), whose sum is σ = 8615376. Its totient is φ = 2133312.

The previous prime is 4321259. The next prime is 4321327. The reversal of 4321312 is 2131234.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (358974).

Almost surely, 2^4321312 is an apocalyptic number.

It is an amenable number.

4321312 is a deficient number, since it is larger than the sum of its proper divisors (4294064).

4321312 is a wasteful number, since it uses less digits than its factorization.

4321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1712 counting only the distinct ones).

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

The square root of 4321312 is about 2078.7765632698. The cubic root of 4321312 is about 162.8815429005.

Adding to 4321312 its reverse (2131234), we get a palindrome (6452546).

The spelling of 4321312 in words is "four million, three hundred twenty-one thousand, three hundred twelve".