12272090 has 16 divisors (see below), whose sum is σ = 22130280. Its totient is φ = 4899840.

The previous prime is 12272089. The next prime is 12272093. The reversal of 12272090 is 9027221.

It can be written as a sum of positive squares in 4 ways, for example, as 9114361 + 3157729 = 3019^2 + 1777^2 .

It is not an unprimeable number, because it can be changed into a prime (12272093) 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 7 ways as a sum of consecutive naturals, for example, 8630 + ... + 9950.

Almost surely, 2^12272090 is an apocalyptic number.

12272090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12272090 is a deficient number, since it is larger than the sum of its proper divisors (9858190).

12272090 is a wasteful number, since it uses less digits than its factorization.

12272090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12272090 is about 3503.1542929195. The cubic root of 12272090 is about 230.6602953939.

The spelling of 12272090 in words is "twelve million, two hundred seventy-two thousand, ninety".