312404 has 6 divisors (see below), whose sum is σ = 546714. Its totient is φ = 156200.

The previous prime is 312401. The next prime is 312407. The reversal of 312404 is 404213.

It is an interprime number because it is at equal distance from previous prime (312401) and next prime (312407).

It can be written as a sum of positive squares in only one way, i.e., 300304 + 12100 = 548^2 + 110^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312404.

It is not an unprimeable number, because it can be changed into a prime (312401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39047 + ... + 39054.

It is an arithmetic number, because the mean of its divisors is an integer number (91119).

2³¹²⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

312404 is a deficient number, since it is larger than the sum of its proper divisors (234310).

312404 is a wasteful number, since it uses less digits than its factorization.

312404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78105 (or 78103 counting only the distinct ones).

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

The square root of 312404 is about 558.9311227692. The cubic root of 312404 is about 67.8534907941.

Adding to 312404 its reverse (404213), we get a palindrome (716617).

Subtracting 312404 from its reverse (404213), we obtain a square (91809 = 303²).

The spelling of 312404 in words is "three hundred twelve thousand, four hundred four", and thus it is an iban number.