40441 has 4 divisors (see below), whose sum is σ = 41572. Its totient is φ = 39312.

The previous prime is 40433. The next prime is 40459. The reversal of 40441 is 14404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38416 + 2025 = 196^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 40441 - 2³ = 40433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40471) 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 3 ways as a sum of consecutive naturals, for example, 510 + ... + 583.

It is an arithmetic number, because the mean of its divisors is an integer number (10393).

2⁴⁰⁴⁴¹ is an apocalyptic number.

It is an amenable number.

40441 is a deficient number, since it is larger than the sum of its proper divisors (1131).

40441 is a wasteful number, since it uses less digits than its factorization.

40441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 40441 is about 201.0994778710. The cubic root of 40441 is about 34.3247430882.

Adding to 40441 its reverse (14404), we get a palindrome (54845).

The spelling of 40441 in words is "forty thousand, four hundred forty-one", and thus it is an iban number.