312041818 has 12 divisors (see below), whose sum is σ = 514482570. Its totient is φ = 141837080.

The previous prime is 312041809. The next prime is 312041819. The reversal of 312041818 is 818140213.

It can be written as a sum of positive squares in only one way, i.e., 307055529 + 4986289 = 17523^2 + 2233^2 .

It is not an unprimeable number, because it can be changed into a prime (312041819) 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 5 ways as a sum of consecutive naturals, for example, 644473 + ... + 644956.

Almost surely, 2^312041818 is an apocalyptic number.

312041818 is a deficient number, since it is larger than the sum of its proper divisors (202440752).

312041818 is a wasteful number, since it uses less digits than its factorization.

312041818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289453 (or 1289442 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 312041818 is about 17664.7054320190. The cubic root of 312041818 is about 678.2725893175.

The spelling of 312041818 in words is "three hundred twelve million, forty-one thousand, eight hundred eighteen".