12490238 has 16 divisors (see below), whose sum is σ = 19564224. Its totient is φ = 5974560.

The previous prime is 12490237. The next prime is 12490243. The reversal of 12490238 is 83209421.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12490238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490237) 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 7 ways as a sum of consecutive naturals, for example, 3131 + ... + 5897.

It is an arithmetic number, because the mean of its divisors is an integer number (1222764).

Almost surely, 2^12490238 is an apocalyptic number.

12490238 is a deficient number, since it is larger than the sum of its proper divisors (7073986).

12490238 is a wasteful number, since it uses less digits than its factorization.

12490238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12490238 is about 3534.1530810082. The cubic root of 12490238 is about 232.0190110263.

Adding to 12490238 its reverse (83209421), we get a palindrome (95699659).

The spelling of 12490238 in words is "twelve million, four hundred ninety thousand, two hundred thirty-eight".