718920241 has 8 divisors (see below), whose sum is σ = 779874984. Its totient is φ = 658773120.

The previous prime is 718920239. The next prime is 718920247. The reversal of 718920241 is 142029817.

It can be written as a sum of positive squares in 4 ways, for example, as 72743841 + 646176400 = 8529^2 + 25420^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 718920241 - 2¹ = 718920239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 718920197 and 718920206.

It is not an unprimeable number, because it can be changed into a prime (718920247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200050 + ... + 203611.

It is an arithmetic number, because the mean of its divisors is an integer number (97484373).

Almost surely, 2^718920241 is an apocalyptic number.

It is an amenable number.

718920241 is a deficient number, since it is larger than the sum of its proper divisors (60954743).

718920241 is a wasteful number, since it uses less digits than its factorization.

718920241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403811.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 718920241 is about 26812.6880599465. The cubic root of 718920241 is about 895.8326846815.

The spelling of 718920241 in words is "seven hundred eighteen million, nine hundred twenty thousand, two hundred forty-one".