11438881 has 8 divisors (see below), whose sum is σ = 11764224. Its totient is φ = 11118240.

The previous prime is 11438873. The next prime is 11438887. The reversal of 11438881 is 18883411.

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

It is a cyclic number.

It is not a de Polignac number, because 11438881 - 2³ = 11438873 is a prime.

It is a super-2 number, since 2×11438881² = 261695997064322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11438887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080 + ... + 6286.

It is an arithmetic number, because the mean of its divisors is an integer number (1470528).

Almost surely, 2^11438881 is an apocalyptic number.

It is an amenable number.

11438881 is a deficient number, since it is larger than the sum of its proper divisors (325343).

11438881 is an equidigital number, since it uses as much as digits as its factorization.

11438881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its digits is 6144, while the sum is 34.

The square root of 11438881 is about 3382.1414813695. The cubic root of 11438881 is about 225.3172873413.

The spelling of 11438881 in words is "eleven million, four hundred thirty-eight thousand, eight hundred eighty-one".