4321489536 has 576 divisors, whose sum is σ = 16172222400. Its totient is φ = 1132185600.

The previous prime is 4321489517. The next prime is 4321489541. The reversal of 4321489536 is 6359841234.

4321489536 is a `hidden beast` number, since 4 + 32 + 1 + 4 + 89 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a junction number, because it is equal to n+sod(n) for n = 4321489491 and 4321489500.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 28619061 + ... + 28619211.

It is an arithmetic number, because the mean of its divisors is an integer number (28076775).

Almost surely, 2^4321489536 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 4321489536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8086111200).

4321489536 is an abundant number, since it is smaller than the sum of its proper divisors (11850732864).

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

4321489536 is a wasteful number, since it uses less digits than its factorization.

4321489536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 176 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 4321489536 is about 65738.0372083013. The cubic root of 4321489536 is about 1628.8377346860.

The spelling of 4321489536 in words is "four billion, three hundred twenty-one million, four hundred eighty-nine thousand, five hundred thirty-six".