312019994 has 16 divisors (see below), whose sum is σ = 549853920. Its totient is φ = 130917360.

The previous prime is 312019973. The next prime is 312019999. The reversal of 312019994 is 499910213.

It is not an unprimeable number, because it can be changed into a prime (312019999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545204 + ... + 545775.

It is an arithmetic number, because the mean of its divisors is an integer number (34365870).

Almost surely, 2^312019994 is an apocalyptic number.

312019994 is a deficient number, since it is larger than the sum of its proper divisors (237833926).

312019994 is a wasteful number, since it uses less digits than its factorization.

312019994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091005.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 312019994 is about 17664.0876922642. The cubic root of 312019994 is about 678.2567763023.

The spelling of 312019994 in words is "three hundred twelve million, nineteen thousand, nine hundred ninety-four".