12393424 has 10 divisors (see below), whose sum is σ = 24012290. Its totient is φ = 6196704.

The previous prime is 12393421. The next prime is 12393427. The reversal of 12393424 is 42439321.

It is an interprime number because it is at equal distance from previous prime (12393421) and next prime (12393427).

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 283024 = 3480^2 + 532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12393392 and 12393401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12393421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387279 + ... + 387310.

It is an arithmetic number, because the mean of its divisors is an integer number (2401229).

Almost surely, 2^12393424 is an apocalyptic number.

It is an amenable number.

12393424 is a deficient number, since it is larger than the sum of its proper divisors (11618866).

12393424 is an equidigital number, since it uses as much as digits as its factorization.

12393424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774597 (or 774591 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 12393424 is about 3520.4295192490. The cubic root of 12393424 is about 231.4179822562.

The spelling of 12393424 in words is "twelve million, three hundred ninety-three thousand, four hundred twenty-four".