312203304 has 72 divisors (see below), whose sum is σ = 983610810. Its totient is φ = 89199936.

The previous prime is 312203303. The next prime is 312203321. The reversal of 312203304 is 403302213.

312203304 is a `hidden beast` number, since 312 + 20 + 330 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 303804900 + 8398404 = 17430^2 + 2898^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (312203303) 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 17 ways as a sum of consecutive naturals, for example, 40719 + ... + 47774.

Almost surely, 2^312203304 is an apocalyptic number.

It is an amenable number.

312203304 is an abundant number, since it is smaller than the sum of its proper divisors (671407506).

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

312203304 is a wasteful number, since it uses less digits than its factorization.

312203304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88519 (or 88505 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 312203304 is about 17669.2757067176. The cubic root of 312203304 is about 678.3895743195.

Adding to 312203304 its reverse (403302213), we get a palindrome (715505517).

The spelling of 312203304 in words is "three hundred twelve million, two hundred three thousand, three hundred four".