7485720 has 128 divisors (see below), whose sum is σ = 25194240. Its totient is φ = 1763840.

The previous prime is 7485713. The next prime is 7485721. The reversal of 7485720 is 275847.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7485721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69907 + ... + 70013.

It is an arithmetic number, because the mean of its divisors is an integer number (196830).

Almost surely, 2^7485720 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 7485720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12597120).

7485720 is an abundant number, since it is smaller than the sum of its proper divisors (17708520).

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

7485720 is a wasteful number, since it uses less digits than its factorization.

7485720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7485720 is about 2736.0043859614. The cubic root of 7485720 is about 195.6190713293.

The spelling of 7485720 in words is "seven million, four hundred eighty-five thousand, seven hundred twenty".