11444421 has 8 divisors (see below), whose sum is σ = 15431040. Its totient is φ = 7543712.

The previous prime is 11444401. The next prime is 11444437. The reversal of 11444421 is 12444411.

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 11444421 - 2¹⁴ = 11428037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444401) 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, 21165 + ... + 21698.

It is an arithmetic number, because the mean of its divisors is an integer number (1928880).

Almost surely, 2^11444421 is an apocalyptic number.

It is an amenable number.

11444421 is a deficient number, since it is larger than the sum of its proper divisors (3986619).

11444421 is an equidigital number, since it uses as much as digits as its factorization.

11444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42955.

The product of its digits is 512, while the sum is 21.

The square root of 11444421 is about 3382.9603899543. The cubic root of 11444421 is about 225.3536561758.

Adding to 11444421 its reverse (12444411), we get a palindrome (23888832).

It can be divided in two parts, 1144 and 4421, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 11444421 in words is "eleven million, four hundred forty-four thousand, four hundred twenty-one".