12290943 has 8 divisors (see below), whose sum is σ = 18729088. Its totient is φ = 7023384.

The previous prime is 12290921. The next prime is 12290953. The reversal of 12290943 is 34909221.

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

It is not a de Polignac number, because 12290943 - 2⁸ = 12290687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12290943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290903) 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, 292621 + ... + 292662.

It is an arithmetic number, because the mean of its divisors is an integer number (2341136).

Almost surely, 2^12290943 is an apocalyptic number.

12290943 is a deficient number, since it is larger than the sum of its proper divisors (6438145).

12290943 is an equidigital number, since it uses as much as digits as its factorization.

12290943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585293.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 12290943 is about 3505.8441208930. The cubic root of 12290943 is about 230.7783522634.

The spelling of 12290943 in words is "twelve million, two hundred ninety thousand, nine hundred forty-three".