4321903872 has 576 divisors, whose sum is σ = 14834534400. Its totient is φ = 1097564160.

The previous prime is 4321903823. The next prime is 4321903877. The reversal of 4321903872 is 2783091234.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 4321903872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321903877) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73252579 + ... + 73252637.

It is an arithmetic number, because the mean of its divisors is an integer number (25754400).

Almost surely, 2^4321903872 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 4321903872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7417267200).

4321903872 is an abundant number, since it is smaller than the sum of its proper divisors (10512630528).

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

4321903872 is a wasteful number, since it uses less digits than its factorization.

4321903872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 4321903872 is about 65741.1885502536. The cubic root of 4321903872 is about 1628.8897896189.

The spelling of 4321903872 in words is "four billion, three hundred twenty-one million, nine hundred three thousand, eight hundred seventy-two".