3947682418 has 16 divisors (see below), whose sum is σ = 6218349120. Its totient is φ = 1875992976.

The previous prime is 3947682413. The next prime is 3947682451. The reversal of 3947682418 is 8142867493.

It is not an unprimeable number, because it can be changed into a prime (3947682413) 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, 266088 + ... + 280531.

It is an arithmetic number, because the mean of its divisors is an integer number (388646820).

Almost surely, 2^3947682418 is an apocalyptic number.

3947682418 is a deficient number, since it is larger than the sum of its proper divisors (2270666702).

3947682418 is a wasteful number, since it uses less digits than its factorization.

3947682418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546801.

The product of its digits is 2322432, while the sum is 52.

The square root of 3947682418 is about 62830.5850521862. The cubic root of 3947682418 is about 1580.4499089952.

The spelling of 3947682418 in words is "three billion, nine hundred forty-seven million, six hundred eighty-two thousand, four hundred eighteen".