12309748 has 12 divisors (see below), whose sum is σ = 23500512. Its totient is φ = 5595320.

The previous prime is 12309721. The next prime is 12309749. The reversal of 12309748 is 84790321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12309749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139840 + ... + 139927.

It is an arithmetic number, because the mean of its divisors is an integer number (1958376).

Almost surely, 2^12309748 is an apocalyptic number.

It is an amenable number.

12309748 is a deficient number, since it is larger than the sum of its proper divisors (11190764).

12309748 is a wasteful number, since it uses less digits than its factorization.

12309748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279782 (or 279780 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12309748 is about 3508.5250462267. The cubic root of 12309748 is about 230.8959883558.

The spelling of 12309748 in words is "twelve million, three hundred nine thousand, seven hundred forty-eight".