4449456480 has 192 divisors, whose sum is σ = 16861340160. Its totient is φ = 963477504.

The previous prime is 4449456379. The next prime is 4449456511. The reversal of 4449456480 is 846549444.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28992 + ... + 98688.

It is an arithmetic number, because the mean of its divisors is an integer number (87819480).

Almost surely, 2^4449456480 is an apocalyptic number.

4449456480 is a gapful number since it is divisible by the number (40) 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 4449456480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8430670080).

4449456480 is an abundant number, since it is smaller than the sum of its proper divisors (12411883680).

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

4449456480 is a wasteful number, since it uses less digits than its factorization.

4449456480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69741 (or 69733 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The square root of 4449456480 is about 66704.2463415936. The cubic root of 4449456480 is about 1644.7591878408.

The spelling of 4449456480 in words is "four billion, four hundred forty-nine million, four hundred fifty-six thousand, four hundred eighty".