44640444220 has 24 divisors (see below), whose sum is σ = 93750553008. Its totient is φ = 17855107200.

The previous prime is 44640444209. The next prime is 44640444223. The reversal of 44640444220 is 2244404644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44640444223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333480 + ... + 447760.

It is an arithmetic number, because the mean of its divisors is an integer number (3906273042).

Almost surely, 2^44640444220 is an apocalyptic number.

It is an amenable number.

44640444220 is an abundant number, since it is smaller than the sum of its proper divisors (49110108788).

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

44640444220 is a wasteful number, since it uses less digits than its factorization.

44640444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133821 (or 133819 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 44640444220 its reverse (2244404644), we get a palindrome (46884848864).

The spelling of 44640444220 in words is "forty-four billion, six hundred forty million, four hundred forty-four thousand, two hundred twenty".