3718132640 has 24 divisors (see below), whose sum is σ = 8784088740. Its totient is φ = 1487252992.

The previous prime is 3718132609. The next prime is 3718132661. The reversal of 3718132640 is 462318173.

It can be written as a sum of positive squares in 2 ways, for example, as 3381189904 + 336942736 = 58148^2 + 18356^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3718132640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11619005 + ... + 11619324.

Almost surely, 2^3718132640 is an apocalyptic number.

It is an amenable number.

3718132640 is an abundant number, since it is smaller than the sum of its proper divisors (5065956100).

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

3718132640 is a wasteful number, since it uses less digits than its factorization.

3718132640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23238344 (or 23238336 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 3718132640 is about 60976.4925196588. The cubic root of 3718132640 is about 1549.2028700411.

The spelling of 3718132640 in words is "three billion, seven hundred eighteen million, one hundred thirty-two thousand, six hundred forty".