12487442 has 16 divisors (see below), whose sum is σ = 20607264. Its totient is φ = 5674900.

The previous prime is 12487421. The next prime is 12487483. The reversal of 12487442 is 24478421.

12487442 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 = 12487399 and 12487408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1287954).

Almost surely, 2^12487442 is an apocalyptic number.

12487442 is a deficient number, since it is larger than the sum of its proper divisors (8119822).

12487442 is an equidigital number, since it uses as much as digits as its factorization.

12487442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726 (or 4704 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 12487442 is about 3533.7574902644. The cubic root of 12487442 is about 232.0016968762.

The spelling of 12487442 in words is "twelve million, four hundred eighty-seven thousand, four hundred forty-two".