3916841220 has 72 divisors (see below), whose sum is σ = 11886540120. Its totient is φ = 1044011520.

The previous prime is 3916841197. The next prime is 3916841231. The reversal of 3916841220 is 221486193.

3916841220 is a `hidden beast` number, since 391 + 6 + 8 + 41 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 389193984 + 3527647236 = 19728^2 + 59394^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574230 + ... + 581010.

It is an arithmetic number, because the mean of its divisors is an integer number (165090835).

Almost surely, 2^3916841220 is an apocalyptic number.

3916841220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3916841220 is an abundant number, since it is smaller than the sum of its proper divisors (7969698900).

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

3916841220 is a wasteful number, since it uses less digits than its factorization.

3916841220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005 (or 10000 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 3916841220 is about 62584.6724046711. The cubic root of 3916841220 is about 1576.3233986586.

The spelling of 3916841220 in words is "three billion, nine hundred sixteen million, eight hundred forty-one thousand, two hundred twenty".