12490838 has 8 divisors (see below), whose sum is σ = 18873432. Its totient is φ = 6199696.

The previous prime is 12490837. The next prime is 12490873. The reversal of 12490838 is 83809421.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12490798 and 12490807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490837) 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 3 ways as a sum of consecutive naturals, for example, 22520 + ... + 23067.

It is an arithmetic number, because the mean of its divisors is an integer number (2359179).

Almost surely, 2^12490838 is an apocalyptic number.

12490838 is a deficient number, since it is larger than the sum of its proper divisors (6382594).

12490838 is a wasteful number, since it uses less digits than its factorization.

12490838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45726.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 12490838 is about 3534.2379659553. The cubic root of 12490838 is about 232.0227261725.

The spelling of 12490838 in words is "twelve million, four hundred ninety thousand, eight hundred thirty-eight".