3855388372 has 12 divisors (see below), whose sum is σ = 7360286976. Its totient is φ = 1752449240.

The previous prime is 3855388357. The next prime is 3855388379. The reversal of 3855388372 is 2738835583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855388379) 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, 43811188 + ... + 43811275.

It is an arithmetic number, because the mean of its divisors is an integer number (613357248).

Almost surely, 2^3855388372 is an apocalyptic number.

It is an amenable number.

3855388372 is a deficient number, since it is larger than the sum of its proper divisors (3504898604).

3855388372 is a wasteful number, since it uses less digits than its factorization.

3855388372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87622478 (or 87622476 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The square root of 3855388372 is about 62091.7737868713. The cubic root of 3855388372 is about 1568.0360545689.

The spelling of 3855388372 in words is "three billion, eight hundred fifty-five million, three hundred eighty-eight thousand, three hundred seventy-two".