12490491 has 8 divisors (see below), whose sum is σ = 17935120. Its totient is φ = 7686432.

The previous prime is 12490487. The next prime is 12490493. The reversal of 12490491 is 19409421.

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

It is not a de Polignac number, because 12490491 - 2² = 12490487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12490493) 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, 160096 + ... + 160173.

It is an arithmetic number, because the mean of its divisors is an integer number (2241890).

Almost surely, 2^12490491 is an apocalyptic number.

12490491 is a deficient number, since it is larger than the sum of its proper divisors (5444629).

12490491 is a wasteful number, since it uses less digits than its factorization.

12490491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320285.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12490491 is about 3534.1888744095. The cubic root of 12490491 is about 232.0205775941.

The spelling of 12490491 in words is "twelve million, four hundred ninety thousand, four hundred ninety-one".