5440440 has 32 divisors (see below), whose sum is σ = 16321680. Its totient is φ = 1450752.

The previous prime is 5440427. The next prime is 5440447. The reversal of 5440440 is 440445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22549 + ... + 22788.

Almost surely, 2^5440440 is an apocalyptic number.

It is an amenable number.

5440440 is an abundant number, since it is smaller than the sum of its proper divisors (10881240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5440440 is a wasteful number, since it uses less digits than its factorization.

5440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45351 (or 45347 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 5440440 is about 2332.4750802527. The cubic root of 5440440 is about 175.8779284376.

Adding to 5440440 its reverse (440445), we get a palindrome (5880885).

The spelling of 5440440 in words is "five million, four hundred forty thousand, four hundred forty".