3938667436 has 12 divisors (see below), whose sum is σ = 7519274280. Its totient is φ = 1790303360.

The previous prime is 3938667433. The next prime is 3938667449. The reversal of 3938667436 is 6347668393.

It is not an unprimeable number, because it can be changed into a prime (3938667433) by changing a digit.

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, 44757541 + ... + 44757628.

It is an arithmetic number, because the mean of its divisors is an integer number (626606190).

Almost surely, 2^3938667436 is an apocalyptic number.

It is an amenable number.

3938667436 is a deficient number, since it is larger than the sum of its proper divisors (3580606844).

3938667436 is a wasteful number, since it uses less digits than its factorization.

3938667436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89515184 (or 89515182 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 55.

The square root of 3938667436 is about 62758.8036533521. The cubic root of 3938667436 is about 1579.2459463333.

The spelling of 3938667436 in words is "three billion, nine hundred thirty-eight million, six hundred sixty-seven thousand, four hundred thirty-six".