440004040 has 64 divisors (see below), whose sum is σ = 1147426560. Its totient is φ = 148727040.

The previous prime is 440004029. The next prime is 440004043. The reversal of 440004040 is 40400044.

It is not an unprimeable number, because it can be changed into a prime (440004043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8814 + ... + 30946.

It is an arithmetic number, because the mean of its divisors is an integer number (17928540).

Almost surely, 2^440004040 is an apocalyptic number.

440004040 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 440004040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573713280).

440004040 is an abundant number, since it is smaller than the sum of its proper divisors (707422520).

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

440004040 is a wasteful number, since it uses less digits than its factorization.

440004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22222 (or 22218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440004040 is about 20976.2732629035. The cubic root of 440004040 is about 760.5928200130.

Adding to 440004040 its reverse (40400044), we get a palindrome (480404084).

The spelling of 440004040 in words is "four hundred forty million, four thousand, forty".