12499438 has 8 divisors (see below), whose sum is σ = 21427632. Its totient is φ = 5356896.

The previous prime is 12499381. The next prime is 12499439. The reversal of 12499438 is 83499421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12499438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446395 + ... + 446422.

It is an arithmetic number, because the mean of its divisors is an integer number (2678454).

Almost surely, 2^12499438 is an apocalyptic number.

12499438 is a deficient number, since it is larger than the sum of its proper divisors (8928194).

12499438 is an equidigital number, since it uses as much as digits as its factorization.

12499438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892826.

The product of its digits is 62208, while the sum is 40.

The square root of 12499438 is about 3535.4544262372. The cubic root of 12499438 is about 232.0759635313.

The spelling of 12499438 in words is "twelve million, four hundred ninety-nine thousand, four hundred thirty-eight".