312304222 has 8 divisors (see below), whose sum is σ = 474386400. Its totient is φ = 154175424.

The previous prime is 312304211. The next prime is 312304253. The reversal of 312304222 is 222403213.

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

It is a self number, because there is not a number n which added to its sum of digits gives 312304222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988147 + ... + 988462.

It is an arithmetic number, because the mean of its divisors is an integer number (59298300).

Almost surely, 2^312304222 is an apocalyptic number.

312304222 is a deficient number, since it is larger than the sum of its proper divisors (162082178).

312304222 is a wasteful number, since it uses less digits than its factorization.

312304222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976690.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 312304222 is about 17672.1312240488. The cubic root of 312304222 is about 678.4626616773.

Adding to 312304222 its reverse (222403213), we get a palindrome (534707435).

The spelling of 312304222 in words is "three hundred twelve million, three hundred four thousand, two hundred twenty-two".