4455726720 has 128 divisors (see below), whose sum is σ = 14660974080. Its totient is φ = 1149849600.

The previous prime is 4455726713. The next prime is 4455726733. The reversal of 4455726720 is 276275544.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22090 + ... + 96950.

It is an arithmetic number, because the mean of its divisors is an integer number (114538860).

Almost surely, 2^4455726720 is an apocalyptic number.

4455726720 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 4455726720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7330487040).

4455726720 is an abundant number, since it is smaller than the sum of its proper divisors (10205247360).

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

4455726720 is a wasteful number, since it uses less digits than its factorization.

4455726720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74914 (or 74902 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The square root of 4455726720 is about 66751.2301010251. The cubic root of 4455726720 is about 1645.5314315413.

The spelling of 4455726720 in words is "four billion, four hundred fifty-five million, seven hundred twenty-six thousand, seven hundred twenty".