718520 has 64 divisors (see below), whose sum is σ = 1866240. Its totient is φ = 246400.

The previous prime is 718513. The next prime is 718541. The reversal of 718520 is 25817.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

718520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10085 + ... + 10155.

It is an arithmetic number, because the mean of its divisors is an integer number (29160).

2⁷¹⁸⁵²⁰ 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 718520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933120).

718520 is an abundant number, since it is smaller than the sum of its proper divisors (1147720).

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

718520 is a wasteful number, since it uses less digits than its factorization.

718520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 718520 is about 847.6555904375. The cubic root of 718520 is about 89.5666409617.

The spelling of 718520 in words is "seven hundred eighteen thousand, five hundred twenty".