11841918 has 64 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 3301760.

The previous prime is 11841917. The next prime is 11841923. The reversal of 11841918 is 81914811.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11841917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43888 + ... + 44156.

It is an arithmetic number, because the mean of its divisors is an integer number (437400).

Almost surely, 2^11841918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11841918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13996800).

11841918 is an abundant number, since it is smaller than the sum of its proper divisors (16151682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11841918 is a wasteful number, since it uses less digits than its factorization.

11841918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its digits is 2304, while the sum is 33.

The square root of 11841918 is about 3441.2087992448. The cubic root of 11841918 is about 227.9330751559.

The spelling of 11841918 in words is "eleven million, eight hundred forty-one thousand, nine hundred eighteen".