1090320266 has 12 divisors (see below), whose sum is σ = 1902497778. Its totient is φ = 467280072.

The previous prime is 1090320239. The next prime is 1090320277. The reversal of 1090320266 is 6620230901.

It can be written as a sum of positive squares in only one way, i.e., 1083792241 + 6528025 = 32921^2 + 2555^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5562761 + ... + 5562956.

Almost surely, 2^1090320266 is an apocalyptic number.

1090320266 is a deficient number, since it is larger than the sum of its proper divisors (812177512).

1090320266 is a wasteful number, since it uses less digits than its factorization.

1090320266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11125733 (or 11125726 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1090320266 is about 33019.9979709266. The cubic root of 1090320266 is about 1029.2432516068.

The spelling of 1090320266 in words is "one billion, ninety million, three hundred twenty thousand, two hundred sixty-six".