5218640 has 40 divisors (see below), whose sum is σ = 13868160. Its totient is φ = 1789056.

The previous prime is 5218639. The next prime is 5218651. The reversal of 5218640 is 468125.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 4100 + ... + 5219.

It is an arithmetic number, because the mean of its divisors is an integer number (346704).

Almost surely, 2^5218640 is an apocalyptic number.

It is an amenable number.

5218640 is an abundant number, since it is smaller than the sum of its proper divisors (8649520).

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

5218640 is a wasteful number, since it uses less digits than its factorization.

5218640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9339 (or 9333 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5218640 is about 2284.4342844564. The cubic root of 5218640 is about 173.4545831454.

The spelling of 5218640 in words is "five million, two hundred eighteen thousand, six hundred forty".