4439791980 has 192 divisors, whose sum is σ = 15157134720. Its totient is φ = 1072161792.

The previous prime is 4439791943. The next prime is 4439791987. The reversal of 4439791980 is 891979344.

4439791980 is a `hidden beast` number, since 443 + 9 + 7 + 9 + 198 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (4439791987) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 366094 + ... + 378026.

It is an arithmetic number, because the mean of its divisors is an integer number (78943410).

Almost surely, 2^4439791980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4439791980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7578567360).

4439791980 is an abundant number, since it is smaller than the sum of its proper divisors (10717342740).

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

4439791980 is a wasteful number, since it uses less digits than its factorization.

4439791980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12017 (or 12009 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 4439791980 is about 66631.7640468868. The cubic root of 4439791980 is about 1643.5674843878.

The spelling of 4439791980 in words is "four billion, four hundred thirty-nine million, seven hundred ninety-one thousand, nine hundred eighty".