3960008220 has 192 divisors, whose sum is σ = 13509974016. Its totient is φ = 846028800.

The previous prime is 3960008191. The next prime is 3960008251. The reversal of 3960008220 is 228000693.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1076304 + ... + 1079976.

It is an arithmetic number, because the mean of its divisors is an integer number (70364448).

Almost surely, 2^3960008220 is an apocalyptic number.

3960008220 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 3960008220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6754987008).

3960008220 is an abundant number, since it is smaller than the sum of its proper divisors (9549965796).

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

3960008220 is a wasteful number, since it uses less digits than its factorization.

3960008220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 3960008220 is about 62928.5962023626. The cubic root of 3960008220 is about 1582.0930733721.

The spelling of 3960008220 in words is "three billion, nine hundred sixty million, eight thousand, two hundred twenty".