12480638 has 4 divisors (see below), whose sum is σ = 18720960. Its totient is φ = 6240318.

The previous prime is 12480619. The next prime is 12480647. The reversal of 12480638 is 83608421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3120158 + ... + 3120161.

It is an arithmetic number, because the mean of its divisors is an integer number (4680240).

Almost surely, 2^12480638 is an apocalyptic number.

12480638 is a deficient number, since it is larger than the sum of its proper divisors (6240322).

12480638 is an equidigital number, since it uses as much as digits as its factorization.

12480638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240321.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12480638 is about 3532.7946444706. The cubic root of 12480638 is about 231.9595525008.

The spelling of 12480638 in words is "twelve million, four hundred eighty thousand, six hundred thirty-eight".