312244012 has 6 divisors (see below), whose sum is σ = 546427028. Its totient is φ = 156122004.

The previous prime is 312244003. The next prime is 312244033. The reversal of 312244012 is 210442213.

It is a super-2 number, since 2×312244012² = 194992646059712288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39030498 + ... + 39030505.

Almost surely, 2^312244012 is an apocalyptic number.

It is an amenable number.

312244012 is a deficient number, since it is larger than the sum of its proper divisors (234183016).

312244012 is a wasteful number, since it uses less digits than its factorization.

312244012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78061007 (or 78061005 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 312244012 is about 17670.4276122566. The cubic root of 312244012 is about 678.4190579735.

Adding to 312244012 its reverse (210442213), we get a palindrome (522686225).

The spelling of 312244012 in words is "three hundred twelve million, two hundred forty-four thousand, twelve".