5217840 has 60 divisors (see below), whose sum is σ = 17525664. Its totient is φ = 1391232.

The previous prime is 5217809. The next prime is 5217841. The reversal of 5217840 is 487125.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (5217841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2904 + ... + 4343.

Almost surely, 2^5217840 is an apocalyptic number.

It is an amenable number.

5217840 is an abundant number, since it is smaller than the sum of its proper divisors (12307824).

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

5217840 is a wasteful number, since it uses less digits than its factorization.

5217840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266 (or 7257 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 5217840 is about 2284.2591796904. The cubic root of 5217840 is about 173.4457193572.

It can be divided in two parts, 5217 and 840, that multiplied together give a triangular number (4382280 = T₂₉₆₀).

The spelling of 5217840 in words is "five million, two hundred seventeen thousand, eight hundred forty".