12266290 has 8 divisors (see below), whose sum is σ = 22079340. Its totient is φ = 4906512.

The previous prime is 12266281. The next prime is 12266311. The reversal of 12266290 is 9266221.

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 439569 = 3439^2 + 663^2 .

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

It is an unprimeable number.

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, 613305 + ... + 613324.

Almost surely, 2^12266290 is an apocalyptic number.

12266290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12266290 is a deficient number, since it is larger than the sum of its proper divisors (9813050).

12266290 is a wasteful number, since it uses less digits than its factorization.

12266290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226636.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12266290 is about 3502.3263697148. The cubic root of 12266290 is about 230.6239516652.

The spelling of 12266290 in words is "twelve million, two hundred sixty-six thousand, two hundred ninety".