723180 has 48 divisors (see below), whose sum is σ = 2147040. Its totient is φ = 181248.

The previous prime is 723169. The next prime is 723181. The reversal of 723180 is 81327.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (723181) 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, 666 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (44730).

2⁷²³¹⁸⁰ 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 723180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1073520).

723180 is an abundant number, since it is smaller than the sum of its proper divisors (1423860).

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

723180 is a wasteful number, since it uses less digits than its factorization.

723180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 723180 is about 850.3999059266. The cubic root of 723180 is about 89.7598536161.

It can be divided in two parts, 723 and 180, that added together give a triangular number (903 = T₄₂).

The spelling of 723180 in words is "seven hundred twenty-three thousand, one hundred eighty".