4491855360 has 480 divisors, whose sum is σ = 16954629120. Its totient is φ = 1094860800.

The previous prime is 4491855359. The next prime is 4491855421. The reversal of 4491855360 is 635581944.

4491855360 is a `hidden beast` number, since 4 + 4 + 91 + 8 + 553 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13570395 + ... + 13570725.

It is an arithmetic number, because the mean of its divisors is an integer number (35322144).

Almost surely, 2^4491855360 is an apocalyptic number.

4491855360 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 4491855360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8477314560).

4491855360 is an abundant number, since it is smaller than the sum of its proper divisors (12462773760).

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

4491855360 is a wasteful number, since it uses less digits than its factorization.

4491855360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 4491855360 is about 67021.3052692948. The cubic root of 4491855360 is about 1649.9669855653.

The spelling of 4491855360 in words is "four billion, four hundred ninety-one million, eight hundred fifty-five thousand, three hundred sixty".