11444431 has 4 divisors (see below), whose sum is σ = 11453392. Its totient is φ = 11435472.

The previous prime is 11444401. The next prime is 11444437. The reversal of 11444431 is 13444411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13444411 = 727 ⋅18493.

It is a cyclic number.

It is not a de Polignac number, because 11444431 - 2¹¹ = 11442383 is a prime.

It is a super-2 number, since 2×11444431² = 261950001827522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444437) 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, 2166 + ... + 5251.

It is an arithmetic number, because the mean of its divisors is an integer number (2863348).

Almost surely, 2^11444431 is an apocalyptic number.

11444431 is a deficient number, since it is larger than the sum of its proper divisors (8961).

11444431 is an equidigital number, since it uses as much as digits as its factorization.

11444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8960.

The product of its digits is 768, while the sum is 22.

The square root of 11444431 is about 3382.9618679494. The cubic root of 11444431 is about 225.3537218129.

Adding to 11444431 its reverse (13444411), we get a palindrome (24888842).

The spelling of 11444431 in words is "eleven million, four hundred forty-four thousand, four hundred thirty-one".