12309048 has 48 divisors (see below), whose sum is σ = 34791120. Its totient is φ = 3924096.

The previous prime is 12309029. The next prime is 12309053. The reversal of 12309048 is 84090321.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 2061 + ... + 5372.

It is an arithmetic number, because the mean of its divisors is an integer number (724815).

Almost surely, 2^12309048 is an apocalyptic number.

12309048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12309048 is an abundant number, since it is smaller than the sum of its proper divisors (22482072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12309048 is a wasteful number, since it uses less digits than its factorization.

12309048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7468 (or 7461 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12309048 is about 3508.4252877894. The cubic root of 12309048 is about 230.8916116007.

Adding to 12309048 its reverse (84090321), we get a palindrome (96399369).

The spelling of 12309048 in words is "twelve million, three hundred nine thousand, forty-eight".