4065488220 has 96 divisors (see below), whose sum is σ = 11889561600. Its totient is φ = 1036917504.

The previous prime is 4065488201. The next prime is 4065488267. The reversal of 4065488220 is 228845604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115461 + ... + 146499.

It is an arithmetic number, because the mean of its divisors is an integer number (123849600).

Almost surely, 2^4065488220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4065488220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5944780800).

4065488220 is an abundant number, since it is smaller than the sum of its proper divisors (7824073380).

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

4065488220 is a wasteful number, since it uses less digits than its factorization.

4065488220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31147 (or 31145 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 4065488220 is about 63761.1811371151. The cubic root of 4065488220 is about 1596.0172060506.

The spelling of 4065488220 in words is "four billion, sixty-five million, four hundred eighty-eight thousand, two hundred twenty".