5245440 has 80 divisors (see below), whose sum is σ = 16793568. Its totient is φ = 1396736.

The previous prime is 5245439. The next prime is 5245459. The reversal of 5245440 is 445425.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 5245440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7339 + ... + 8021.

Almost surely, 2^5245440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8396784).

5245440 is an abundant number, since it is smaller than the sum of its proper divisors (11548128).

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

5245440 is an equidigital number, since it uses as much as digits as its factorization.

5245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 5245440 is about 2290.2925577314. The cubic root of 5245440 is about 173.7509980447.

The spelling of 5245440 in words is "five million, two hundred forty-five thousand, four hundred forty".