440500000 has 84 divisors (see below), whose sum is σ = 1085259546. Its totient is φ = 176000000.

The previous prime is 440499967. The next prime is 440500019. The reversal of 440500000 is 5044.

It can be written as a sum of positive squares in 7 ways, for example, as 309900816 + 130599184 = 17604^2 + 11428^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 499560 + ... + 500440.

Almost surely, 2^440500000 is an apocalyptic number.

440500000 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 440500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542629773).

440500000 is an abundant number, since it is smaller than the sum of its proper divisors (644759546).

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

440500000 is an frugal number, since it uses more digits than its factorization.

440500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 440500000 is about 20988.0918618154. The cubic root of 440500000 is about 760.8784855506.

Adding to 440500000 its reverse (5044), we get a palindrome (440505044).

The spelling of 440500000 in words is "four hundred forty million, five hundred thousand".