12490389 has 8 divisors (see below), whose sum is σ = 18504320. Its totient is φ = 8326908.

The previous prime is 12490369. The next prime is 12490397. The reversal of 12490389 is 98309421.

It is not a de Polignac number, because 12490389 - 2⁹ = 12489877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231277 + ... + 231330.

It is an arithmetic number, because the mean of its divisors is an integer number (2313040).

Almost surely, 2^12490389 is an apocalyptic number.

It is an amenable number.

12490389 is a deficient number, since it is larger than the sum of its proper divisors (6013931).

12490389 is an equidigital number, since it uses as much as digits as its factorization.

12490389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462616 (or 462610 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 12490389 is about 3534.1744439119. The cubic root of 12490389 is about 232.0199460160.

The spelling of 12490389 in words is "twelve million, four hundred ninety thousand, three hundred eighty-nine".