11266381 has 8 divisors (see below), whose sum is σ = 12909824. Its totient is φ = 9631440.

The previous prime is 11266357. The next prime is 11266391. The reversal of 11266381 is 18366211.

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

It is not a de Polignac number, because 11266381 - 2⁷ = 11266253 is a prime.

It is a super-2 number, since 2×11266381² = 253862681674322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11266391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 4858.

It is an arithmetic number, because the mean of its divisors is an integer number (1613728).

Almost surely, 2^11266381 is an apocalyptic number.

It is an amenable number.

11266381 is a deficient number, since it is larger than the sum of its proper divisors (1643443).

11266381 is an equidigital number, since it uses as much as digits as its factorization.

11266381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251.

The product of its digits is 1728, while the sum is 28.

The square root of 11266381 is about 3356.5430132802. The cubic root of 11266381 is about 224.1789399790.

The spelling of 11266381 in words is "eleven million, two hundred sixty-six thousand, three hundred eighty-one".