7182720 has 192 divisors, whose sum is σ = 26254800. Its totient is φ = 1806336.

The previous prime is 7182709. The next prime is 7182727. The reversal of 7182720 is 272817.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7182727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167019 + ... + 167061.

Almost surely, 2^7182720 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 7182720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13127400).

7182720 is an abundant number, since it is smaller than the sum of its proper divisors (19072080).

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

7182720 is a wasteful number, since it uses less digits than its factorization.

7182720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 7182720 is about 2680.0597008276. The cubic root of 7182720 is about 192.9432748719.

Subtracting from 7182720 its reverse (272817), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 7182720 in words is "seven million, one hundred eighty-two thousand, seven hundred twenty".