3858941820 has 24 divisors (see below), whose sum is σ = 10805037264. Its totient is φ = 1029051136.

The previous prime is 3858941797. The next prime is 3858941861. The reversal of 3858941820 is 281498583.

3858941820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3858941820.

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, 32157789 + ... + 32157908.

It is an arithmetic number, because the mean of its divisors is an integer number (450209886).

Almost surely, 2^3858941820 is an apocalyptic number.

3858941820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3858941820 is an abundant number, since it is smaller than the sum of its proper divisors (6946095444).

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

3858941820 is a wasteful number, since it uses less digits than its factorization.

3858941820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64315709 (or 64315707 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 3858941820 is about 62120.3816794456. The cubic root of 3858941820 is about 1568.5176509795.

The spelling of 3858941820 in words is "three billion, eight hundred fifty-eight million, nine hundred forty-one thousand, eight hundred twenty".