312344422 has 32 divisors (see below), whose sum is σ = 517974912. Its totient is φ = 140358144.

The previous prime is 312344411. The next prime is 312344429. The reversal of 312344422 is 224443213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312344429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284178 + ... + 285274.

It is an arithmetic number, because the mean of its divisors is an integer number (16186716).

Almost surely, 2^312344422 is an apocalyptic number.

312344422 is a deficient number, since it is larger than the sum of its proper divisors (205630490).

312344422 is a wasteful number, since it uses less digits than its factorization.

312344422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its digits is 4608, while the sum is 25.

The square root of 312344422 is about 17673.2685714895. The cubic root of 312344422 is about 678.4917711448.

Adding to 312344422 its reverse (224443213), we get a palindrome (536787635).

The spelling of 312344422 in words is "three hundred twelve million, three hundred forty-four thousand, four hundred twenty-two".