4445989548 has 192 divisors, whose sum is σ = 13981040640. Its totient is φ = 1061971200.

The previous prime is 4445989547. The next prime is 4445989553. The reversal of 4445989548 is 8459895444.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4445989491 and 4445989500.

It is not an unprimeable number, because it can be changed into a prime (4445989543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4311793 + ... + 4312823.

It is an arithmetic number, because the mean of its divisors is an integer number (72817920).

Almost surely, 2^4445989548 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 4445989548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6990520320).

4445989548 is an abundant number, since it is smaller than the sum of its proper divisors (9535051092).

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

4445989548 is a wasteful number, since it uses less digits than its factorization.

4445989548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1426 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 60.

The square root of 4445989548 is about 66678.2539363472. The cubic root of 4445989548 is about 1644.3318884646.

The spelling of 4445989548 in words is "four billion, four hundred forty-five million, nine hundred eighty-nine thousand, five hundred forty-eight".