7326720 has 176 divisors, whose sum is σ = 26529120. Its totient is φ = 1916928.

The previous prime is 7326713. The next prime is 7326721. The reversal of 7326720 is 276237.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7326721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138214 + ... + 138266.

Almost surely, 2^7326720 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 7326720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13264560).

7326720 is an abundant number, since it is smaller than the sum of its proper divisors (19202400).

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

7326720 is a wasteful number, since it uses less digits than its factorization.

7326720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 7326720 is about 2706.7914585354. The cubic root of 7326720 is about 194.2241360296.

The spelling of 7326720 in words is "seven million, three hundred twenty-six thousand, seven hundred twenty".