312240004 has 12 divisors (see below), whose sum is σ = 546545104. Its totient is φ = 156084264.

The previous prime is 312240001. The next prime is 312240031. The reversal of 312240004 is 400042213.

It is a self number, because there is not a number n which added to its sum of digits gives 312240004.

It is not an unprimeable number, because it can be changed into a prime (312240001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25279 + ... + 35545.

Almost surely, 2^312240004 is an apocalyptic number.

It is an amenable number.

312240004 is a deficient number, since it is larger than the sum of its proper divisors (234305100).

312240004 is a wasteful number, since it uses less digits than its factorization.

312240004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17874 (or 17872 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 312240004 is about 17670.3142020735. The cubic root of 312240004 is about 678.4161552061.

Adding to 312240004 its reverse (400042213), we get a palindrome (712282217).

The spelling of 312240004 in words is "three hundred twelve million, two hundred forty thousand, four".