12390876 has 36 divisors (see below), whose sum is σ = 31429944. Its totient is φ = 4116000.

The previous prime is 12390871. The next prime is 12390883. The reversal of 12390876 is 67809321.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12390876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12390871) 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 in 11 ways as a sum of consecutive naturals, for example, 17326 + ... + 18026.

It is an arithmetic number, because the mean of its divisors is an integer number (873054).

Almost surely, 2^12390876 is an apocalyptic number.

It is an amenable number.

12390876 is an abundant number, since it is smaller than the sum of its proper divisors (19039068).

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

12390876 is a wasteful number, since it uses less digits than its factorization.

12390876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12390876 is about 3520.0676129870. The cubic root of 12390876 is about 231.4021218711.

The spelling of 12390876 in words is "twelve million, three hundred ninety thousand, eight hundred seventy-six".