12312464 has 30 divisors (see below), whose sum is σ = 24616914. Its totient is φ = 5962240.

The previous prime is 12312463. The next prime is 12312467. The reversal of 12312464 is 46421321.

It can be written as a sum of positive squares in 3 ways, for example, as 478864 + 11833600 = 692^2 + 3440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89804 + ... + 89940.

Almost surely, 2^12312464 is an apocalyptic number.

It is an amenable number.

12312464 is a deficient number, since it is larger than the sum of its proper divisors (12304450).

12312464 is an equidigital number, since it uses as much as digits as its factorization.

12312464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 180 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 12312464 is about 3508.9120821132. The cubic root of 12312464 is about 230.9129685948.

Adding to 12312464 its reverse (46421321), we get a palindrome (58733785).

The spelling of 12312464 in words is "twelve million, three hundred twelve thousand, four hundred sixty-four".