44640004320 has 72 divisors (see below), whose sum is σ = 152334019656. Its totient is φ = 11904000768.

The previous prime is 44640004267. The next prime is 44640004361. The reversal of 44640004320 is 2340004644.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 15498562 + ... + 15501441.

It is an arithmetic number, because the mean of its divisors is an integer number (2115750273).

Almost surely, 2^44640004320 is an apocalyptic number.

44640004320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44640004320 is an abundant number, since it is smaller than the sum of its proper divisors (107694015336).

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

44640004320 is a wasteful number, since it uses less digits than its factorization.

44640004320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31000024 (or 31000013 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 44640004320 its reverse (2340004644), we get a palindrome (46980008964).

The spelling of 44640004320 in words is "forty-four billion, six hundred forty million, four thousand, three hundred twenty".