3872306838 has 32 divisors (see below), whose sum is σ = 8053250400. Its totient is φ = 1239791616.

The previous prime is 3872306831. The next prime is 3872306839. The reversal of 3872306838 is 8386032783.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872306831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24073 + ... + 91236.

It is an arithmetic number, because the mean of its divisors is an integer number (251664075).

Almost surely, 2^3872306838 is an apocalyptic number.

3872306838 is an abundant number, since it is smaller than the sum of its proper divisors (4180943562).

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

3872306838 is a wasteful number, since it uses less digits than its factorization.

3872306838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115536.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 3872306838 is about 62227.8622322831. The cubic root of 3872306838 is about 1570.3263602713.

The spelling of 3872306838 in words is "three billion, eight hundred seventy-two million, three hundred six thousand, eight hundred thirty-eight".