4400440 has 64 divisors (see below), whose sum is σ = 11028960. Its totient is φ = 1566720.

The previous prime is 4400413. The next prime is 4400443. The reversal of 4400440 is 440044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400443) 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, 32052 + ... + 32188.

Almost surely, 2^4400440 is an apocalyptic number.

4400440 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 4400440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5514480).

4400440 is an abundant number, since it is smaller than the sum of its proper divisors (6628520).

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

4400440 is a wasteful number, since it uses less digits than its factorization.

4400440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 228 counting only the distinct ones).

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

The square root of 4400440 is about 2097.7225746032. The cubic root of 4400440 is about 163.8697160799.

Adding to 4400440 its reverse (440044), we get a palindrome (4840484).

It can be divided in two parts, 44004 and 40, that added together give a palindrome (44044).

The spelling of 4400440 in words is "four million, four hundred thousand, four hundred forty".