3855329972 has 24 divisors (see below), whose sum is σ = 7693216776. Its totient is φ = 1674713088.

The previous prime is 3855329927. The next prime is 3855329981. The reversal of 3855329972 is 2799235583.

It can be written as a sum of positive squares in 4 ways, for example, as 15792676 + 3839537296 = 3974^2 + 61964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179733 + ... + 2181500.

It is an arithmetic number, because the mean of its divisors is an integer number (320550699).

Almost surely, 2^3855329972 is an apocalyptic number.

It is an amenable number.

3855329972 is a deficient number, since it is larger than the sum of its proper divisors (3837886804).

3855329972 is a wasteful number, since it uses less digits than its factorization.

3855329972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361267 (or 4361265 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 53.

The square root of 3855329972 is about 62091.3035134551. The cubic root of 3855329972 is about 1568.0281371851.

The spelling of 3855329972 in words is "three billion, eight hundred fifty-five million, three hundred twenty-nine thousand, nine hundred seventy-two".