718281140 has 12 divisors (see below), whose sum is σ = 1508390436. Its totient is φ = 287312448.

The previous prime is 718281131. The next prime is 718281143. The reversal of 718281140 is 41182817.

It can be written as a sum of positive squares in 2 ways, for example, as 358647844 + 359633296 = 18938^2 + 18964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 718281097 and 718281106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718281143) 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 3 ways as a sum of consecutive naturals, for example, 17957009 + ... + 17957048.

It is an arithmetic number, because the mean of its divisors is an integer number (125699203).

Almost surely, 2^718281140 is an apocalyptic number.

It is an amenable number.

718281140 is an abundant number, since it is smaller than the sum of its proper divisors (790109296).

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

718281140 is a wasteful number, since it uses less digits than its factorization.

718281140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35914066 (or 35914064 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 718281140 is about 26800.7675263228. The cubic root of 718281140 is about 895.5671488266.

The spelling of 718281140 in words is "seven hundred eighteen million, two hundred eighty-one thousand, one hundred forty".