3821708520 has 512 divisors, whose sum is σ = 15704064000. Its totient is φ = 807459840.

The previous prime is 3821708519. The next prime is 3821708531. The reversal of 3821708520 is 258071283.

3821708520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5389926 + ... + 5390634.

It is an arithmetic number, because the mean of its divisors is an integer number (30672000).

Almost surely, 2^3821708520 is an apocalyptic number.

3821708520 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 3821708520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7852032000).

3821708520 is an abundant number, since it is smaller than the sum of its proper divisors (11882355480).

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

3821708520 is a wasteful number, since it uses less digits than its factorization.

3821708520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 3821708520 is about 61819.9686185621. The cubic root of 3821708520 is about 1563.4566840547.

The spelling of 3821708520 in words is "three billion, eight hundred twenty-one million, seven hundred eight thousand, five hundred twenty".