12168490 has 8 divisors (see below), whose sum is σ = 21903300. Its totient is φ = 4867392.

The previous prime is 12168467. The next prime is 12168491. The reversal of 12168490 is 9486121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12089529 + 78961 = 3477^2 + 281^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12168491) 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, 608415 + ... + 608434.

Almost surely, 2^12168490 is an apocalyptic number.

12168490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12168490 is a deficient number, since it is larger than the sum of its proper divisors (9734810).

12168490 is a wasteful number, since it uses less digits than its factorization.

12168490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216856.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12168490 is about 3488.3362796611. The cubic root of 12168490 is about 230.0093884006.

The spelling of 12168490 in words is "twelve million, one hundred sixty-eight thousand, four hundred ninety".