44429488638 has 32 divisors (see below), whose sum is σ = 89679744000. Its totient is φ = 14673659616.

The previous prime is 44429488589. The next prime is 44429488639. The reversal of 44429488638 is 83688492444.

It is a happy number.

44429488638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44429488639) 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, 207520 + ... + 363212.

It is an arithmetic number, because the mean of its divisors is an integer number (2802492000).

Almost surely, 2^44429488638 is an apocalyptic number.

44429488638 is an abundant number, since it is smaller than the sum of its proper divisors (45250255362).

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

44429488638 is a wasteful number, since it uses less digits than its factorization.

44429488638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156136.

The product of its digits is 42467328, while the sum is 60.

The spelling of 44429488638 in words is "forty-four billion, four hundred twenty-nine million, four hundred eighty-eight thousand, six hundred thirty-eight".