3821383020 has 384 divisors, whose sum is σ = 13785956352. Its totient is φ = 769305600.

The previous prime is 3821382991. The next prime is 3821383021. The reversal of 3821383020 is 203831283.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (3821383021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18110715 + ... + 18110925.

It is an arithmetic number, because the mean of its divisors is an integer number (35900928).

Almost surely, 2^3821383020 is an apocalyptic number.

3821383020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3821383020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6892978176).

3821383020 is an abundant number, since it is smaller than the sum of its proper divisors (9964573332).

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

3821383020 is a wasteful number, since it uses less digits than its factorization.

3821383020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 3821383020 is about 61817.3359180093. The cubic root of 3821383020 is about 1563.4122955658.

The spelling of 3821383020 in words is "three billion, eight hundred twenty-one million, three hundred eighty-three thousand, twenty".