5207840 has 72 divisors (see below), whose sum is σ = 13573980. Its totient is φ = 1886720.

The previous prime is 5207827. The next prime is 5207879. The reversal of 5207840 is 487025.

It can be written as a sum of positive squares in 2 ways, for example, as 4648336 + 559504 = 2156^2 + 748^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19226 + ... + 19494.

Almost surely, 2^5207840 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 5207840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6786990).

5207840 is an abundant number, since it is smaller than the sum of its proper divisors (8366140).

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

5207840 is a wasteful number, since it uses less digits than its factorization.

5207840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 5207840 is about 2282.0692364606. The cubic root of 5207840 is about 173.3348454832.

The spelling of 5207840 in words is "five million, two hundred seven thousand, eight hundred forty".