44400448044 has 18 divisors (see below), whose sum is σ = 112234465980. Its totient is φ = 14800149336.

The previous prime is 44400448039. The next prime is 44400448051. The reversal of 44400448044 is 44084400444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1233345779 = 44400448044 / (4 + 4 + 4 + 0 + 0 + 4 + 4 + 8 + 0 + 4 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616672854 + ... + 616672925.

It is an arithmetic number, because the mean of its divisors is an integer number (6235248110).

Almost surely, 2^44400448044 is an apocalyptic number.

It is an amenable number.

44400448044 is an abundant number, since it is smaller than the sum of its proper divisors (67834017936).

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

44400448044 is a wasteful number, since it uses less digits than its factorization.

44400448044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233345789 (or 1233345784 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

Adding to 44400448044 its reverse (44084400444), we get a palindrome (88484848488).

The spelling of 44400448044 in words is "forty-four billion, four hundred million, four hundred forty-eight thousand, forty-four".