716220 has 72 divisors (see below), whose sum is σ = 2280096. Its totient is φ = 181632.

The previous prime is 716173. The next prime is 716249. The reversal of 716220 is 22617.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 716193 and 716202.

It is a congruent number.

It is an unprimeable number.

716220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4054 + ... + 4226.

It is an arithmetic number, because the mean of its divisors is an integer number (31668).

2⁷¹⁶²²⁰ 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 716220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140048).

716220 is an abundant number, since it is smaller than the sum of its proper divisors (1563876).

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

716220 is a wasteful number, since it uses less digits than its factorization.

716220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 716220 is about 846.2978199192. The cubic root of 716220 is about 89.4709704756.

Adding to 716220 its reverse (22617), we get a palindrome (738837).

The spelling of 716220 in words is "seven hundred sixteen thousand, two hundred twenty".