312312404 has 6 divisors (see below), whose sum is σ = 546546714. Its totient is φ = 156156200.

The previous prime is 312312379. The next prime is 312312419. The reversal of 312312404 is 404213213.

It can be written as a sum of positive squares in only one way, i.e., 243422404 + 68890000 = 15602^2 + 8300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39039047 + ... + 39039054.

It is an arithmetic number, because the mean of its divisors is an integer number (91091119).

Almost surely, 2^312312404 is an apocalyptic number.

It is an amenable number.

312312404 is a deficient number, since it is larger than the sum of its proper divisors (234234310).

312312404 is a wasteful number, since it uses less digits than its factorization.

312312404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78078105 (or 78078103 counting only the distinct ones).

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

The square root of 312312404 is about 17672.3627169657. The cubic root of 312312404 is about 678.4685865978.

Adding to 312312404 its reverse (404213213), we get a palindrome (716525617).

The spelling of 312312404 in words is "three hundred twelve million, three hundred twelve thousand, four hundred four".