3823801820 has 12 divisors (see below), whose sum is σ = 8029983864. Its totient is φ = 1529520720.

The previous prime is 3823801811. The next prime is 3823801843. The reversal of 3823801820 is 281083283.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 95595026 + ... + 95595065.

It is an arithmetic number, because the mean of its divisors is an integer number (669165322).

Almost surely, 2^3823801820 is an apocalyptic number.

It is an amenable number.

3823801820 is an abundant number, since it is smaller than the sum of its proper divisors (4206182044).

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

3823801820 is a wasteful number, since it uses less digits than its factorization.

3823801820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191190100 (or 191190098 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 3823801820 is about 61836.8969143828. The cubic root of 3823801820 is about 1563.7420875156.

The spelling of 3823801820 in words is "three billion, eight hundred twenty-three million, eight hundred one thousand, eight hundred twenty".