12387930 has 48 divisors (see below), whose sum is σ = 30854304. Its totient is φ = 3183040.

The previous prime is 12387887. The next prime is 12387937. The reversal of 12387930 is 3978321.

12387930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12387891 and 12387900.

It is not an unprimeable number, because it can be changed into a prime (12387937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24985 + ... + 25475.

It is an arithmetic number, because the mean of its divisors is an integer number (642798).

Almost surely, 2^12387930 is an apocalyptic number.

12387930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12387930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15427152).

12387930 is an abundant number, since it is smaller than the sum of its proper divisors (18466374).

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

12387930 is a wasteful number, since it uses less digits than its factorization.

12387930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12387930 is about 3519.6491302401. The cubic root of 12387930 is about 231.3837813684.

The spelling of 12387930 in words is "twelve million, three hundred eighty-seven thousand, nine hundred thirty".