5172440 has 128 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 1580544.

The previous prime is 5172407. The next prime is 5172449. The reversal of 5172440 is 442715.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178346 + ... + 178374.

It is an arithmetic number, because the mean of its divisors is an integer number (118125).

Almost surely, 2^5172440 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 5172440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7560000).

5172440 is an abundant number, since it is smaller than the sum of its proper divisors (9947560).

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

5172440 is a wasteful number, since it uses less digits than its factorization.

5172440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 5172440 is about 2274.2998922745. The cubic root of 5172440 is about 172.9412075941.

The spelling of 5172440 in words is "five million, one hundred seventy-two thousand, four hundred forty".