3836928638 has 8 divisors (see below), whose sum is σ = 5910944232. Its totient is φ = 1866613896.

The previous prime is 3836928631. The next prime is 3836928659. The reversal of 3836928638 is 8368296383.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3836928631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25925120 + ... + 25925267.

It is an arithmetic number, because the mean of its divisors is an integer number (738868029).

Almost surely, 2^3836928638 is an apocalyptic number.

3836928638 is a deficient number, since it is larger than the sum of its proper divisors (2074015594).

3836928638 is a wasteful number, since it uses less digits than its factorization.

3836928638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51850426.

The product of its digits is 8957952, while the sum is 56.

The square root of 3836928638 is about 61942.9466364008. The cubic root of 3836928638 is about 1565.5294459515.

The spelling of 3836928638 in words is "three billion, eight hundred thirty-six million, nine hundred twenty-eight thousand, six hundred thirty-eight".