11390266 has 4 divisors (see below), whose sum is σ = 17085402. Its totient is φ = 5695132.

The previous prime is 11390261. The next prime is 11390273. The reversal of 11390266 is 66209311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66209311 = 7 ⋅9458473.

It can be written as a sum of positive squares in only one way, i.e., 11082241 + 308025 = 3329^2 + 555^2 .

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11390261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2847565 + ... + 2847568.

Almost surely, 2^11390266 is an apocalyptic number.

11390266 is a deficient number, since it is larger than the sum of its proper divisors (5695136).

11390266 is an equidigital number, since it uses as much as digits as its factorization.

11390266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5695135.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 11390266 is about 3374.9468143957. The cubic root of 11390266 is about 224.9976361892.

Adding to 11390266 its reverse (66209311), we get a palindrome (77599577).

The spelling of 11390266 in words is "eleven million, three hundred ninety thousand, two hundred sixty-six".