44640340512 has 48 divisors (see below), whose sum is σ = 118388968992. Its totient is φ = 14726707200.

The previous prime is 44640340453. The next prime is 44640340517. The reversal of 44640340512 is 21504304644.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (44640340517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2387614 + ... + 2406237.

It is an arithmetic number, because the mean of its divisors is an integer number (2466436854).

Almost surely, 2^44640340512 is an apocalyptic number.

It is an amenable number.

44640340512 is an abundant number, since it is smaller than the sum of its proper divisors (73748628480).

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

44640340512 is a wasteful number, since it uses less digits than its factorization.

44640340512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793961 (or 4793953 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 44640340512 in words is "forty-four billion, six hundred forty million, three hundred forty thousand, five hundred twelve".