44404440 has 128 divisors (see below), whose sum is σ = 139700160. Its totient is φ = 11280384.

The previous prime is 44404439. The next prime is 44404447. The reversal of 44404440 is 4440444.

44404440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 44404440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44404447) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 324052 + ... + 324188.

Almost surely, 2^44404440 is an apocalyptic number.

44404440 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 44404440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69850080).

44404440 is an abundant number, since it is smaller than the sum of its proper divisors (95295720).

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

44404440 is a wasteful number, since it uses less digits than its factorization.

44404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 44404440 is about 6663.6656578793. The cubic root of 44404440 is about 354.1132134938.

Adding to 44404440 its reverse (4440444), we get a palindrome (48844884).

It can be divided in two parts, 44404 and 440, that added together give a palindrome (44844).

The spelling of 44404440 in words is "forty-four million, four hundred four thousand, four hundred forty".