44004440 has 32 divisors (see below), whose sum is σ = 99226080. Its totient is φ = 17563392.

The previous prime is 44004421. The next prime is 44004463. The reversal of 44004440 is 4440044.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23789 + ... + 25571.

It is an arithmetic number, because the mean of its divisors is an integer number (3100815).

Almost surely, 2^44004440 is an apocalyptic number.

44004440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44004440 is an abundant number, since it is smaller than the sum of its proper divisors (55221640).

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

44004440 is a wasteful number, since it uses less digits than its factorization.

44004440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 44004440 is about 6633.5842498607. The cubic root of 44004440 is about 353.0467079412.

Adding to 44004440 its reverse (4440044), we get a palindrome (48444484).

It can be divided in two parts, 44004 and 440, that added together give a palindrome (44444).

The spelling of 44004440 in words is "forty-four million, four thousand, four hundred forty".