312132404 has 12 divisors (see below), whose sum is σ = 546572964. Its totient is φ = 155968704.

The previous prime is 312132389. The next prime is 312132409. The reversal of 312132404 is 404231213.

It can be written as a sum of positive squares in 2 ways, for example, as 241740304 + 70392100 = 15548^2 + 8390^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132409) 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 3 ways as a sum of consecutive naturals, for example, 16919 + ... + 30174.

It is an arithmetic number, because the mean of its divisors is an integer number (45547747).

Almost surely, 2^312132404 is an apocalyptic number.

It is an amenable number.

312132404 is a deficient number, since it is larger than the sum of its proper divisors (234440560).

312132404 is a wasteful number, since it uses less digits than its factorization.

312132404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48754 (or 48752 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312132404 is about 17667.2692853197. The cubic root of 312132404 is about 678.3382173334.

Adding to 312132404 its reverse (404231213), we get a palindrome (716363617).

The spelling of 312132404 in words is "three hundred twelve million, one hundred thirty-two thousand, four hundred four".