11443404 has 48 divisors (see below), whose sum is σ = 31046400. Its totient is φ = 3212736.

The previous prime is 11443379. The next prime is 11443409. The reversal of 11443404 is 40434411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (11443409) 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 15 ways as a sum of consecutive naturals, for example, 3802 + ... + 6110.

It is an arithmetic number, because the mean of its divisors is an integer number (646800).

Almost surely, 2^11443404 is an apocalyptic number.

11443404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11443404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15523200).

11443404 is an abundant number, since it is smaller than the sum of its proper divisors (19602996).

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

11443404 is a wasteful number, since it uses less digits than its factorization.

11443404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 11443404 is about 3382.8100744795. The cubic root of 11443404 is about 225.3469806828.

Adding to 11443404 its reverse (40434411), we get a palindrome (51877815).

The spelling of 11443404 in words is "eleven million, four hundred forty-three thousand, four hundred four".