312216326 has 8 divisors (see below), whose sum is σ = 468706800. Its totient is φ = 155980728.

The previous prime is 312216313. The next prime is 312216337. The reversal of 312216326 is 623612213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 312216295 and 312216304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60626 + ... + 65573.

It is an arithmetic number, because the mean of its divisors is an integer number (58588350).

Almost surely, 2^312216326 is an apocalyptic number.

312216326 is a deficient number, since it is larger than the sum of its proper divisors (156490474).

312216326 is a wasteful number, since it uses less digits than its factorization.

312216326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127438.

The product of its digits is 2592, while the sum is 26.

The square root of 312216326 is about 17669.6441956254. The cubic root of 312216326 is about 678.3990060649.

Adding to 312216326 its reverse (623612213), we get a palindrome (935828539).

The spelling of 312216326 in words is "three hundred twelve million, two hundred sixteen thousand, three hundred twenty-six".