7480720 has 40 divisors (see below), whose sum is σ = 18733176. Its totient is φ = 2761728.

The previous prime is 7480687. The next prime is 7480721. The reversal of 7480720 is 270847.

It can be written as a sum of positive squares in 4 ways, for example, as 147456 + 7333264 = 384^2 + 2708^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×7480720² = 111922343436800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7480721) 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, 2557 + ... + 4636.

Almost surely, 2^7480720 is an apocalyptic number.

It is an amenable number.

7480720 is an abundant number, since it is smaller than the sum of its proper divisors (11252456).

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

7480720 is a wasteful number, since it uses less digits than its factorization.

7480720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219 (or 7213 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7480720 is about 2735.0904921044. The cubic root of 7480720 is about 195.5755077974.

The spelling of 7480720 in words is "seven million, four hundred eighty thousand, seven hundred twenty".