44431 has 4 divisors (see below), whose sum is σ = 44872. Its totient is φ = 43992.

The previous prime is 44417. The next prime is 44449. The reversal of 44431 is 13444.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44431 is a prime.

It is a super-2 number, since 2×44431² = 3948227522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16 + ... + 298.

It is an arithmetic number, because the mean of its divisors is an integer number (11218).

2⁴⁴⁴³¹ is an apocalyptic number.

44431 is a deficient number, since it is larger than the sum of its proper divisors (441).

44431 is a wasteful number, since it uses less digits than its factorization.

44431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440.

The product of its digits is 192, while the sum is 16.

The square root of 44431 is about 210.7866219664. The cubic root of 44431 is about 35.4183802324.

Adding to 44431 its reverse (13444), we get a palindrome (57875).

It can be divided in two parts, 4443 and 1, that added together give a palindrome (4444).

The spelling of 44431 in words is "forty-four thousand, four hundred thirty-one".