12315446 has 48 divisors (see below), whose sum is σ = 23209200. Its totient is φ = 4830720.

The previous prime is 12315427. The next prime is 12315449. The reversal of 12315446 is 64451321.

It is a Harshad number since it is a multiple of its sum of digits (26).

Its product of digits (2880) is a multiple of the sum of its prime divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82580 + ... + 82728.

It is an arithmetic number, because the mean of its divisors is an integer number (483525).

Almost surely, 2^12315446 is an apocalyptic number.

12315446 is a deficient number, since it is larger than the sum of its proper divisors (10893754).

12315446 is a wasteful number, since it uses less digits than its factorization.

12315446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 192 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 12315446 is about 3509.3369744155. The cubic root of 12315446 is about 230.9316089711.

Adding to 12315446 its reverse (64451321), we get a palindrome (76766767).

The spelling of 12315446 in words is "twelve million, three hundred fifteen thousand, four hundred forty-six".