439220000 has 60 divisors (see below), whose sum is σ = 1080596286. Its totient is φ = 175680000.

The previous prime is 439219999. The next prime is 439220009. The reversal of 439220000 is 22934.

It can be written as a sum of positive squares in 5 ways, for example, as 29724304 + 409495696 = 5452^2 + 20236^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (439220009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9020 + ... + 30980.

Almost surely, 2^439220000 is an apocalyptic number.

439220000 is a gapful number since it is divisible by the number (40) 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 439220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540298143).

439220000 is an abundant number, since it is smaller than the sum of its proper divisors (641376286).

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

439220000 is an equidigital number, since it uses as much as digits as its factorization.

439220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21991 (or 21968 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 439220000 is about 20957.5761957341. The cubic root of 439220000 is about 760.1407864761.

Adding to 439220000 its reverse (22934), we get a palindrome (439242934).

The spelling of 439220000 in words is "four hundred thirty-nine million, two hundred twenty thousand".