312212008 has 16 divisors (see below), whose sum is σ = 591195060. Its totient is φ = 154560000.

The previous prime is 312212003. The next prime is 312212077. The reversal of 312212008 is 800212213.

It can be written as a sum of positive squares in 2 ways, for example, as 311804964 + 407044 = 17658^2 + 638^2 .

It is not an unprimeable number, because it can be changed into a prime (312212003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192393 + ... + 194008.

Almost surely, 2^312212008 is an apocalyptic number.

It is an amenable number.

312212008 is a deficient number, since it is larger than the sum of its proper divisors (278983052).

312212008 is a wasteful number, since it uses less digits than its factorization.

312212008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386508 (or 386504 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 312212008 is about 17669.5220082491. The cubic root of 312212008 is about 678.3958785961.

The spelling of 312212008 in words is "three hundred twelve million, two hundred twelve thousand, eight".