440000312 has 16 divisors (see below), whose sum is σ = 827658000. Its totient is φ = 219291520.

The previous prime is 440000291. The next prime is 440000317. The reversal of 440000312 is 213000044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440000317) 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, 85937 + ... + 90912.

It is an arithmetic number, because the mean of its divisors is an integer number (51728625).

Almost surely, 2^440000312 is an apocalyptic number.

It is an amenable number.

440000312 is a deficient number, since it is larger than the sum of its proper divisors (387657688).

440000312 is a wasteful number, since it uses less digits than its factorization.

440000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177166 (or 177162 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 440000312 is about 20976.1844004099. The cubic root of 440000312 is about 760.5906719282.

Adding to 440000312 its reverse (213000044), we get a palindrome (653000356).

The spelling of 440000312 in words is "four hundred forty million, three hundred twelve", and thus it is an aban number.