12489376 has 24 divisors (see below), whose sum is σ = 24694740. Its totient is φ = 6217728.

The previous prime is 12489371. The next prime is 12489427. The reversal of 12489376 is 67398421.

It can be written as a sum of positive squares in 2 ways, for example, as 9461776 + 3027600 = 3076^2 + 1740^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12489371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8160 + ... + 9568.

Almost surely, 2^12489376 is an apocalyptic number.

12489376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12489376 is a deficient number, since it is larger than the sum of its proper divisors (12205364).

12489376 is a wasteful number, since it uses less digits than its factorization.

12489376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1688 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 12489376 is about 3534.0311260655. The cubic root of 12489376 is about 232.0136733915.

The spelling of 12489376 in words is "twelve million, four hundred eighty-nine thousand, three hundred seventy-six".