717054240 has 288 divisors, whose sum is σ = 2692388160. Its totient is φ = 159860736.

The previous prime is 717054227. The next prime is 717054241. The reversal of 717054240 is 42450717.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 717054198 and 717054207.

It is not an unprimeable number, because it can be changed into a prime (717054241) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1011006 + ... + 1011714.

It is an arithmetic number, because the mean of its divisors is an integer number (9348570).

Almost surely, 2^717054240 is an apocalyptic number.

717054240 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 717054240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346194080).

717054240 is an abundant number, since it is smaller than the sum of its proper divisors (1975333920).

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

717054240 is a wasteful number, since it uses less digits than its factorization.

717054240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 717054240 is about 26777.8684737975. The cubic root of 717054240 is about 895.0569504869.

The spelling of 717054240 in words is "seven hundred seventeen million, fifty-four thousand, two hundred forty".