312444322 has 16 divisors (see below), whose sum is σ = 497705760. Its totient is φ = 146688192.

The previous prime is 312444311. The next prime is 312444323. The reversal of 312444322 is 223444213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312444323) 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, 32088 + ... + 40675.

It is an arithmetic number, because the mean of its divisors is an integer number (31106610).

Almost surely, 2^312444322 is an apocalyptic number.

312444322 is a deficient number, since it is larger than the sum of its proper divisors (185261438).

312444322 is a wasteful number, since it uses less digits than its factorization.

312444322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72897.

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

The square root of 312444322 is about 17676.0946478570. The cubic root of 312444322 is about 678.5640995299.

Adding to 312444322 its reverse (223444213), we get a palindrome (535888535).

The spelling of 312444322 in words is "three hundred twelve million, four hundred forty-four thousand, three hundred twenty-two".