2064444880 has 40 divisors (see below), whose sum is σ = 4819004064. Its totient is φ = 822480000.

The previous prime is 2064444841. The next prime is 2064444881. The reversal of 2064444880 is 884444602.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064444881) by changing a digit.

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, 31326 + ... + 71485.

Almost surely, 2^2064444880 is an apocalyptic number.

2064444880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2064444880 is an abundant number, since it is smaller than the sum of its proper divisors (2754559184).

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

2064444880 is a wasteful number, since it uses less digits than its factorization.

2064444880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103075 (or 103069 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The square root of 2064444880 is about 45436.1626900864. The cubic root of 2064444880 is about 1273.3108231967.

The spelling of 2064444880 in words is "two billion, sixty-four million, four hundred forty-four thousand, eight hundred eighty".