4020422660 has 12 divisors (see below), whose sum is σ = 8442887628. Its totient is φ = 1608169056.

The previous prime is 4020422639. The next prime is 4020422677. The reversal of 4020422660 is 662240204.

It can be written as a sum of positive squares in 2 ways, for example, as 2676613696 + 1343808964 = 51736^2 + 36658^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100510547 + ... + 100510586.

It is an arithmetic number, because the mean of its divisors is an integer number (703573969).

Almost surely, 2^4020422660 is an apocalyptic number.

It is an amenable number.

4020422660 is an abundant number, since it is smaller than the sum of its proper divisors (4422464968).

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

4020422660 is a wasteful number, since it uses less digits than its factorization.

4020422660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201021142 (or 201021140 counting only the distinct ones).

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

The square root of 4020422660 is about 63406.8029473179. The cubic root of 4020422660 is about 1590.0980465098.

Adding to 4020422660 its reverse (662240204), we get a palindrome (4682662864).

The spelling of 4020422660 in words is "four billion, twenty million, four hundred twenty-two thousand, six hundred sixty".