312040444 has 12 divisors (see below), whose sum is σ = 547646904. Its totient is φ = 155569904.

The previous prime is 312040427. The next prime is 312040447. The reversal of 312040444 is 444040213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312040447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111019 + ... + 113794.

It is an arithmetic number, because the mean of its divisors is an integer number (45637242).

Almost surely, 2^312040444 is an apocalyptic number.

It is an amenable number.

312040444 is a deficient number, since it is larger than the sum of its proper divisors (235606460).

312040444 is a wasteful number, since it uses less digits than its factorization.

312040444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225164 (or 225162 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 312040444 is about 17664.6665408663. Note that the first 3 decimals coincide. The cubic root of 312040444 is about 678.2715937801.

Adding to 312040444 its reverse (444040213), we get a palindrome (756080657).

The spelling of 312040444 in words is "three hundred twelve million, forty thousand, four hundred forty-four".