3984444564 has 24 divisors (see below), whose sum is σ = 9843922368. Its totient is φ = 1250021760.

The previous prime is 3984444559. The next prime is 3984444577. The reversal of 3984444564 is 4654444893.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9765592 + ... + 9765999.

It is an arithmetic number, because the mean of its divisors is an integer number (410163432).

Almost surely, 2^3984444564 is an apocalyptic number.

3984444564 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3984444564 is an abundant number, since it is smaller than the sum of its proper divisors (5859477804).

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

3984444564 is a wasteful number, since it uses less digits than its factorization.

3984444564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19531615 (or 19531613 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 51.

The square root of 3984444564 is about 63122.4568913473. The cubic root of 3984444564 is about 1585.3406524987.

The spelling of 3984444564 in words is "three billion, nine hundred eighty-four million, four hundred forty-four thousand, five hundred sixty-four".