4389105312 has 96 divisors (see below), whose sum is σ = 12824179200. Its totient is φ = 1460450304.

The previous prime is 4389105269. The next prime is 4389105337. The reversal of 4389105312 is 2135019834.

4389105312 is a `hidden beast` number, since 4 + 38 + 91 + 0 + 531 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-4 number, since 4×4389105312⁴ (a number of 40 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 520264 + ... + 528632.

It is an arithmetic number, because the mean of its divisors is an integer number (133585200).

Almost surely, 2^4389105312 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 4389105312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6412089600).

4389105312 is an abundant number, since it is smaller than the sum of its proper divisors (8435073888).

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

4389105312 is a wasteful number, since it uses less digits than its factorization.

4389105312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8995 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 4389105312 is about 66250.3231086460. The cubic root of 4389105312 is about 1637.2889613388.

The spelling of 4389105312 in words is "four billion, three hundred eighty-nine million, one hundred five thousand, three hundred twelve".