3805236128 has 24 divisors (see below), whose sum is σ = 7557862788. Its totient is φ = 1885778944.

The previous prime is 3805236079. The next prime is 3805236133. The reversal of 3805236128 is 8216325083.

3805236128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2485221904 + 1320014224 = 49852^2 + 36332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3805236091 and 3805236100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522551 + ... + 529782.

Almost surely, 2^3805236128 is an apocalyptic number.

It is an amenable number.

3805236128 is a deficient number, since it is larger than the sum of its proper divisors (3752626660).

3805236128 is a wasteful number, since it uses less digits than its factorization.

3805236128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052456 (or 1052448 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 3805236128 is about 61686.5960156662. The cubic root of 3805236128 is about 1561.2071699358.

The spelling of 3805236128 in words is "three billion, eight hundred five million, two hundred thirty-six thousand, one hundred twenty-eight".