44400444040 has 16 divisors (see below), whose sum is σ = 99900999180. Its totient is φ = 17760177600.

The previous prime is 44400443929. The next prime is 44400444061. The reversal of 44400444040 is 4044400444.

It can be written as a sum of positive squares in 2 ways, for example, as 41052432996 + 3348011044 = 202614^2 + 57862^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555005511 + ... + 555005590.

Almost surely, 2^44400444040 is an apocalyptic number.

44400444040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44400444040 is an abundant number, since it is smaller than the sum of its proper divisors (55500555140).

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

44400444040 is a wasteful number, since it uses less digits than its factorization.

44400444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110011112 (or 1110011108 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 44400444040 its reverse (4044400444), we get a palindrome (48444844484).

The spelling of 44400444040 in words is "forty-four billion, four hundred million, four hundred forty-four thousand, forty".