312444214 has 4 divisors (see below), whose sum is σ = 468666324. Its totient is φ = 156222106.

The previous prime is 312444211. The next prime is 312444229. The reversal of 312444214 is 412444213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412444213 = 281 ⋅1467773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312444211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78111052 + ... + 78111055.

It is an arithmetic number, because the mean of its divisors is an integer number (117166581).

Almost surely, 2^312444214 is an apocalyptic number.

312444214 is a deficient number, since it is larger than the sum of its proper divisors (156222110).

312444214 is a wasteful number, since it uses less digits than its factorization.

312444214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156222109.

The product of its digits is 3072, while the sum is 25.

The square root of 312444214 is about 17676.0915928833. The cubic root of 312444214 is about 678.5640213453.

Adding to 312444214 its reverse (412444213), we get a palindrome (724888427).

Subtracting 312444214 from its reverse (412444213), we obtain a palindrome (99999999).

The spelling of 312444214 in words is "three hundred twelve million, four hundred forty-four thousand, two hundred fourteen".