439340928 has 256 divisors, whose sum is σ = 1381847040. Its totient is φ = 122388480.

The previous prime is 439340927. The next prime is 439340947. The reversal of 439340928 is 829043934.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 439340928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439340927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2630701 + ... + 2630867.

It is an arithmetic number, because the mean of its divisors is an integer number (5397840).

Almost surely, 2^439340928 is an apocalyptic number.

439340928 is a gapful number since it is divisible by the number (48) 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 439340928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690923520).

439340928 is an abundant number, since it is smaller than the sum of its proper divisors (942506112).

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

439340928 is a wasteful number, since it uses less digits than its factorization.

439340928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 439340928 is about 20960.4610636312. The cubic root of 439340928 is about 760.2105418531.

The spelling of 439340928 in words is "four hundred thirty-nine million, three hundred forty thousand, nine hundred twenty-eight".