4917840 has 80 divisors (see below), whose sum is σ = 15760896. Its totient is φ = 1267200.

The previous prime is 4917839. The next prime is 4917853. The reversal of 4917840 is 487194.

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7110 + ... + 7770.

Almost surely, 2^4917840 is an apocalyptic number.

4917840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4917840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7880448).

4917840 is an abundant number, since it is smaller than the sum of its proper divisors (10843056).

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

4917840 is a wasteful number, since it uses less digits than its factorization.

4917840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 702 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 4917840 is about 2217.6203462270. The cubic root of 4917840 is about 170.0558063611.

The spelling of 4917840 in words is "four million, nine hundred seventeen thousand, eight hundred forty".