718328520 has 256 divisors, whose sum is σ = 2947392000. Its totient is φ = 151538688.

The previous prime is 718328519. The next prime is 718328549. The reversal of 718328520 is 25823817.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable 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 63 ways as a sum of consecutive naturals, for example, 94626 + ... + 101934.

It is an arithmetic number, because the mean of its divisors is an integer number (11513250).

Almost surely, 2^718328520 is an apocalyptic number.

718328520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718328520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473696000).

718328520 is an abundant number, since it is smaller than the sum of its proper divisors (2229063480).

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

718328520 is a wasteful number, since it uses less digits than its factorization.

718328520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7349 (or 7339 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 718328520 is about 26801.6514416556. The cubic root of 718328520 is about 895.5868398344.

The spelling of 718328520 in words is "seven hundred eighteen million, three hundred twenty-eight thousand, five hundred twenty".