5172640 has 48 divisors (see below), whose sum is σ = 13335840. Its totient is φ = 1880320.

The previous prime is 5172571. The next prime is 5172647. The reversal of 5172640 is 462715.

It is not an unprimeable number, because it can be changed into a prime (5172647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291 + ... + 3229.

It is an arithmetic number, because the mean of its divisors is an integer number (277830).

Almost surely, 2^5172640 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 5172640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6667920).

5172640 is an abundant number, since it is smaller than the sum of its proper divisors (8163200).

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

5172640 is a wasteful number, since it uses less digits than its factorization.

5172640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 5172640 is about 2274.3438614247. The cubic root of 5172640 is about 172.9434365741.

The spelling of 5172640 in words is "five million, one hundred seventy-two thousand, six hundred forty".