4164644420 has 24 divisors (see below), whose sum is σ = 8746968384. Its totient is φ = 1665626336.

The previous prime is 4164644389. The next prime is 4164644507. The reversal of 4164644420 is 244464614.

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, 261527 + ... + 276993.

It is an arithmetic number, because the mean of its divisors is an integer number (364457016).

Almost surely, 2^4164644420 is an apocalyptic number.

It is an amenable number.

4164644420 is an abundant number, since it is smaller than the sum of its proper divisors (4582323964).

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

4164644420 is a wasteful number, since it uses less digits than its factorization.

4164644420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28939 (or 28937 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

The square root of 4164644420 is about 64534.0562803858. The cubic root of 4164644420 is about 1608.8886045236. Note that the first 3 decimals are identical.

The spelling of 4164644420 in words is "four billion, one hundred sixty-four million, six hundred forty-four thousand, four hundred twenty".