5256240 has 120 divisors (see below), whose sum is σ = 18009264. Its totient is φ = 1267200.

The previous prime is 5256239. The next prime is 5256253. The reversal of 5256240 is 426525.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a self number, because there is not a number n which added to its sum of digits gives 5256240.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 28950 + ... + 29130.

Almost surely, 2^5256240 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 5256240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9004632).

5256240 is an abundant number, since it is smaller than the sum of its proper divisors (12753024).

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

5256240 is a wasteful number, since it uses less digits than its factorization.

5256240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 5256240 is about 2292.6491227399. The cubic root of 5256240 is about 173.8701634139.

The spelling of 5256240 in words is "five million, two hundred fifty-six thousand, two hundred forty".