12448431 has 8 divisors (see below), whose sum is σ = 18442160. Its totient is φ = 8298936.

The previous prime is 12448427. The next prime is 12448433. The reversal of 12448431 is 13484421.

It is not a de Polignac number, because 12448431 - 2² = 12448427 is a prime.

It is a super-2 number, since 2×12448431² = 309926868723522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 461053 = 12448431 / (1 + 2 + 4 + 4 + 8 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12448395 and 12448404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230500 + ... + 230553.

It is an arithmetic number, because the mean of its divisors is an integer number (2305270).

Almost surely, 2^12448431 is an apocalyptic number.

12448431 is a deficient number, since it is larger than the sum of its proper divisors (5993729).

12448431 is an equidigital number, since it uses as much as digits as its factorization.

12448431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461062 (or 461056 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 12448431 is about 3528.2334106462. The cubic root of 12448431 is about 231.7598523267.

The spelling of 12448431 in words is "twelve million, four hundred forty-eight thousand, four hundred thirty-one".