5440257 has 8 divisors (see below), whose sum is σ = 8059680. Its totient is φ = 3626820.

The previous prime is 5440247. The next prime is 5440273. The reversal of 5440257 is 7520445.

It is not a de Polignac number, because 5440257 - 2⁴ = 5440241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 201491 = 5440257 / (5 + 4 + 4 + 0 + 2 + 5 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 5440257.

It is not an unprimeable number, because it can be changed into a prime (5440217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100719 + ... + 100772.

It is an arithmetic number, because the mean of its divisors is an integer number (1007460).

Almost surely, 2^5440257 is an apocalyptic number.

It is an amenable number.

5440257 is a deficient number, since it is larger than the sum of its proper divisors (2619423).

5440257 is a wasteful number, since it uses less digits than its factorization.

5440257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201500 (or 201494 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 5440257 is about 2332.4358512079. The cubic root of 5440257 is about 175.8759564143.

The spelling of 5440257 in words is "five million, four hundred forty thousand, two hundred fifty-seven".