439903872 has 96 divisors (see below), whose sum is σ = 1312846080. Its totient is φ = 146624256.

The previous prime is 439903829. The next prime is 439903897. The reversal of 439903872 is 278309934.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24033 + ... + 38175.

It is an arithmetic number, because the mean of its divisors is an integer number (13675480).

Almost surely, 2^439903872 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 439903872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656423040).

439903872 is an abundant number, since it is smaller than the sum of its proper divisors (872942208).

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

439903872 is an equidigital number, since it uses as much as digits as its factorization.

439903872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14172 (or 14148 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 439903872 is about 20973.8854769449. The cubic root of 439903872 is about 760.5350986917.

The spelling of 439903872 in words is "four hundred thirty-nine million, nine hundred three thousand, eight hundred seventy-two".