4220240660 has 24 divisors (see below), whose sum is σ = 9168110280. Its totient is φ = 1629885824.

The previous prime is 4220240623. The next prime is 4220240737. The reversal of 4220240660 is 660420224.

It can be written as a sum of positive squares in 4 ways, for example, as 698896 + 4219541764 = 836^2 + 64958^2 .

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 7 ways as a sum of consecutive naturals, for example, 3637559 + ... + 3638718.

It is an arithmetic number, because the mean of its divisors is an integer number (382004595).

Almost surely, 2^4220240660 is an apocalyptic number.

It is an amenable number.

4220240660 is an abundant number, since it is smaller than the sum of its proper divisors (4947869620).

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

4220240660 is a wasteful number, since it uses less digits than its factorization.

4220240660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276315 (or 7276313 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 4220240660 is about 64963.3793763840. The cubic root of 4220240660 is about 1616.0163079792.

Adding to 4220240660 its reverse (660420224), we get a palindrome (4880660884).

The spelling of 4220240660 in words is "four billion, two hundred twenty million, two hundred forty thousand, six hundred sixty".