7045328720 has 80 divisors (see below), whose sum is σ = 17347996800. Its totient is φ = 2655324672.

The previous prime is 7045328681. The next prime is 7045328729. The reversal of 7045328720 is 278235407.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7045328729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94706 + ... + 151854.

It is an arithmetic number, because the mean of its divisors is an integer number (216849960).

Almost surely, 2^7045328720 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 7045328720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8673998400).

7045328720 is an abundant number, since it is smaller than the sum of its proper divisors (10302668080).

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

7045328720 is a wasteful number, since it uses less digits than its factorization.

7045328720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57252 (or 57246 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 7045328720 is about 83936.4564417631. The cubic root of 7045328720 is about 1917.0513840296.

The spelling of 7045328720 in words is "seven billion, forty-five million, three hundred twenty-eight thousand, seven hundred twenty".