718240236 has 72 divisors (see below), whose sum is σ = 1959919920. Its totient is φ = 204115968.

The previous prime is 718240231. The next prime is 718240241. The reversal of 718240236 is 632042817.

It is an interprime number because it is at equal distance from previous prime (718240231) and next prime (718240241).

It is a junction number, because it is equal to n+sod(n) for n = 718240197 and 718240206.

It is not an unprimeable number, because it can be changed into a prime (718240231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110320 + ... + 116648.

It is an arithmetic number, because the mean of its divisors is an integer number (27221110).

Almost surely, 2^718240236 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 718240236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979959960).

718240236 is an abundant number, since it is smaller than the sum of its proper divisors (1241679684).

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

718240236 is a wasteful number, since it uses less digits than its factorization.

718240236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 718240236 is about 26800.0044029847. The cubic root of 718240236 is about 895.5501485315.

The spelling of 718240236 in words is "seven hundred eighteen million, two hundred forty thousand, two hundred thirty-six".