4445840448 has 168 divisors, whose sum is σ = 15033873920. Its totient is φ = 1229230080.

The previous prime is 4445840437. The next prime is 4445840449. The reversal of 4445840448 is 8440485444.

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (4445840449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107208 + ... + 142776.

Almost surely, 2^4445840448 is an apocalyptic number.

4445840448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4445840448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7516936960).

4445840448 is an abundant number, since it is smaller than the sum of its proper divisors (10588033472).

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

4445840448 is a wasteful number, since it uses less digits than its factorization.

4445840448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35625 (or 35612 counting only the distinct ones).

The product of its (nonzero) digits is 1310720, while the sum is 45.

The square root of 4445840448 is about 66677.1358713015. The cubic root of 4445840448 is about 1644.3135069080.

The spelling of 4445840448 in words is "four billion, four hundred forty-five million, eight hundred forty thousand, four hundred forty-eight".