312144404 has 48 divisors (see below), whose sum is σ = 644824320. Its totient is φ = 130343040.

The previous prime is 312144383. The next prime is 312144409. The reversal of 312144404 is 404441213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312144404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312144409) 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 15 ways as a sum of consecutive naturals, for example, 129797 + ... + 132179.

It is an arithmetic number, because the mean of its divisors is an integer number (13433840).

Almost surely, 2^312144404 is an apocalyptic number.

It is an amenable number.

312144404 is an abundant number, since it is smaller than the sum of its proper divisors (332679916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312144404 is a wasteful number, since it uses less digits than its factorization.

312144404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 312144404 is about 17667.6088931128. The cubic root of 312144404 is about 678.3469101768.

Adding to 312144404 its reverse (404441213), we get a palindrome (716585617).

The spelling of 312144404 in words is "three hundred twelve million, one hundred forty-four thousand, four hundred four".