5440431 has 4 divisors (see below), whose sum is σ = 7253912. Its totient is φ = 3626952.

The previous prime is 5440427. The next prime is 5440447. The reversal of 5440431 is 1340445.

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

It is not a de Polignac number, because 5440431 - 2² = 5440427 is a prime.

It is a super-2 number, since 2×5440431² = 59196578931522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5440398 and 5440407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440411) 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, 906736 + ... + 906741.

It is an arithmetic number, because the mean of its divisors is an integer number (1813478).

Almost surely, 2^5440431 is an apocalyptic number.

5440431 is a deficient number, since it is larger than the sum of its proper divisors (1813481).

5440431 is a wasteful number, since it uses less digits than its factorization.

5440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813480.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 5440431 is about 2332.4731509709. The cubic root of 5440431 is about 175.8778314538.

Adding to 5440431 its reverse (1340445), we get a palindrome (6780876).

The spelling of 5440431 in words is "five million, four hundred forty thousand, four hundred thirty-one".