11881418 has 8 divisors (see below), whose sum is σ = 17853312. Its totient is φ = 5930316.

The previous prime is 11881417. The next prime is 11881421. The reversal of 11881418 is 81418811.

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 (11881417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3680 + ... + 6107.

It is an arithmetic number, because the mean of its divisors is an integer number (2231664).

Almost surely, 2^11881418 is an apocalyptic number.

11881418 is a deficient number, since it is larger than the sum of its proper divisors (5971894).

11881418 is an equidigital number, since it uses as much as digits as its factorization.

11881418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10396.

The product of its digits is 2048, while the sum is 32.

The square root of 11881418 is about 3446.9432835485. The cubic root of 11881418 is about 228.1862257131.

The spelling of 11881418 in words is "eleven million, eight hundred eighty-one thousand, four hundred eighteen".