1140206266 has 8 divisors (see below), whose sum is σ = 1738347444. Its totient is φ = 560757120.

The previous prime is 1140206261. The next prime is 1140206267. The reversal of 1140206266 is 6626020411.

It can be written as a sum of positive squares in 2 ways, for example, as 1060479225 + 79727041 = 32565^2 + 8929^2 .

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 (1140206261) 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 3 ways as a sum of consecutive naturals, for example, 4672855 + ... + 4673098.

Almost surely, 2^1140206266 is an apocalyptic number.

1140206266 is a deficient number, since it is larger than the sum of its proper divisors (598141178).

1140206266 is an equidigital number, since it uses as much as digits as its factorization.

1140206266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9346016.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1140206266 is about 33766.9404299531. The cubic root of 1140206266 is about 1044.7069272697.

Adding to 1140206266 its reverse (6626020411), we get a palindrome (7766226677).

The spelling of 1140206266 in words is "one billion, one hundred forty million, two hundred six thousand, two hundred sixty-six".