3806643204 has 243 divisors, whose sum is σ = 12228814143. Its totient is φ = 995065344.

The previous prime is 3806643199. The next prime is 3806643259. The reversal of 3806643204 is 4023466083.

It is a happy number.

The square root of 3806643204 is 61698.

It is a perfect power (a square), and thus also a powerful number.

3806643204 is a `hidden beast` number, since 3 + 8 + 0 + 6 + 643 + 2 + 0 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2840676804 + 965966400 = 53298^2 + 31080^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 33687052 + ... + 33687164.

Almost surely, 2^3806643204 is an apocalyptic number.

3806643204 is the 61698-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3806643204

3806643204 is an abundant number, since it is smaller than the sum of its proper divisors (8422170939).

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

3806643204 is a wasteful number, since it uses less digits than its factorization.

3806643204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The cubic root of 3806643204 is about 1561.3995773061.

Multiplying 3806643204 by its sum of digits (36), we get a square (137039155344 = 370188²).

3806643204 divided by its sum of digits (36) gives a square (105740089 = 10283²).

Multiplying 3806643204 by its product of nonzero digits (82944), we get a square (315738213912576 = 17769024²).

The spelling of 3806643204 in words is "three billion, eight hundred six million, six hundred forty-three thousand, two hundred four".