5120720 has 90 divisors (see below), whose sum is σ = 13680114. Its totient is φ = 1781120.

The previous prime is 5120719. The next prime is 5120729. The reversal of 5120720 is 270215.

It can be written as a sum of positive squares in only one way, i.e., 4096576 + 1024144 = 2024^2 + 1012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120729) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 222629 + ... + 222651.

Almost surely, 2^5120720 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 5120720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6840057).

5120720 is an abundant number, since it is smaller than the sum of its proper divisors (8559394).

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

5120720 is a wasteful number, since it uses less digits than its factorization.

5120720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 5120720 is about 2262.9007932298. The cubic root of 5120720 is about 172.3628539540.

Adding to 5120720 its reverse (270215), we get a palindrome (5390935).

It can be divided in two parts, 5120 and 720, that multiplied together give a square (3686400 = 1920²).

The spelling of 5120720 in words is "five million, one hundred twenty thousand, seven hundred twenty".