7305980 has 36 divisors (see below), whose sum is σ = 16869720. Its totient is φ = 2655840.

The previous prime is 7305959. The next prime is 7305989. The reversal of 7305980 is 895037.

7305980 = T₁₇₀₇ + T₁₇₀₈ + ... + T₁₇₁₁.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7305989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911 + ... + 3929.

Almost surely, 2^7305980 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 7305980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8434860).

7305980 is an abundant number, since it is smaller than the sum of its proper divisors (9563740).

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

7305980 is a wasteful number, since it uses less digits than its factorization.

7305980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 7305980 is about 2702.9576393277. The cubic root of 7305980 is about 194.0406971693.

The spelling of 7305980 in words is "seven million, three hundred five thousand, nine hundred eighty".