12669290 has 8 divisors (see below), whose sum is σ = 22804740. Its totient is φ = 5067712.

The previous prime is 12669289. The next prime is 12669313. The reversal of 12669290 is 9296621.

It can be written as a sum of positive squares in 2 ways, for example, as 12666481 + 2809 = 3559^2 + 53^2 .

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

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 12669290.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633455 + ... + 633474.

Almost surely, 2^12669290 is an apocalyptic number.

12669290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12669290 is a deficient number, since it is larger than the sum of its proper divisors (10135450).

12669290 is a wasteful number, since it uses less digits than its factorization.

12669290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266936.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12669290 is about 3559.3946114473. The cubic root of 12669290 is about 233.1224466462.

The spelling of 12669290 in words is "twelve million, six hundred sixty-nine thousand, two hundred ninety".