2064443820 has 24 divisors (see below), whose sum is σ = 5780442864. Its totient is φ = 550518336.

The previous prime is 2064443819. The next prime is 2064443833. The reversal of 2064443820 is 283444602.

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, 17203639 + ... + 17203758.

It is an arithmetic number, because the mean of its divisors is an integer number (240851786).

Almost surely, 2^2064443820 is an apocalyptic number.

2064443820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2064443820 is an abundant number, since it is smaller than the sum of its proper divisors (3715999044).

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

2064443820 is a wasteful number, since it uses less digits than its factorization.

2064443820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34407409 (or 34407407 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 2064443820 is about 45436.1510253675. The cubic root of 2064443820 is about 1273.3106052673.

The spelling of 2064443820 in words is "two billion, sixty-four million, four hundred forty-three thousand, eight hundred twenty".