12390048 has 72 divisors (see below), whose sum is σ = 38447136. Its totient is φ = 3753600.

The previous prime is 12390041. The next prime is 12390083. The reversal of 12390048 is 84009321.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (12390041) 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 11 ways as a sum of consecutive naturals, for example, 1213 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (533988).

Almost surely, 2^12390048 is an apocalyptic number.

12390048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12390048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19223568).

12390048 is an abundant number, since it is smaller than the sum of its proper divisors (26057088).

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

12390048 is a wasteful number, since it uses less digits than its factorization.

12390048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938 (or 3927 counting only the distinct ones).

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

The square root of 12390048 is about 3519.9499996449. The cubic root of 12390048 is about 231.3969674003.

Adding to 12390048 its reverse (84009321), we get a palindrome (96399369).

The spelling of 12390048 in words is "twelve million, three hundred ninety thousand, forty-eight".