44530139988 has 48 divisors (see below), whose sum is σ = 115459901760. Its totient is φ = 14841915552.

The previous prime is 44530139981. The next prime is 44530140019. The reversal of 44530139988 is 88993103544.

44530139988 is a `hidden beast` number, since 4 + 4 + 530 + 13 + 9 + 98 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44530139981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2058195 + ... + 2079717.

It is an arithmetic number, because the mean of its divisors is an integer number (2405414620).

Almost surely, 2^44530139988 is an apocalyptic number.

It is an amenable number.

44530139988 is an abundant number, since it is smaller than the sum of its proper divisors (70929761772).

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

44530139988 is a wasteful number, since it uses less digits than its factorization.

44530139988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40693 (or 40685 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 44530139988 in words is "forty-four billion, five hundred thirty million, one hundred thirty-nine thousand, nine hundred eighty-eight".