11731444 has 12 divisors (see below), whose sum is σ = 20917764. Its totient is φ = 5754944.

The previous prime is 11731409. The next prime is 11731451. The reversal of 11731444 is 44413711.

11731444 = T₂₂₁ + T₂₂₂ + ... + T₄₃₂.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6441444 + 5290000 = 2538^2 + 2300^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27457 + ... + 27880.

It is an arithmetic number, because the mean of its divisors is an integer number (1743147).

Almost surely, 2^11731444 is an apocalyptic number.

It is an amenable number.

11731444 is a deficient number, since it is larger than the sum of its proper divisors (9186320).

11731444 is a wasteful number, since it uses less digits than its factorization.

11731444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55394 (or 55392 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 11731444 is about 3425.1195599570. The cubic root of 11731444 is about 227.2220588332. Note that the first 3 decimals are identical.

The spelling of 11731444 in words is "eleven million, seven hundred thirty-one thousand, four hundred forty-four".