44198218388 has 24 divisors (see below), whose sum is σ = 78205516200. Its totient is φ = 21854658560.

The previous prime is 44198218373. The next prime is 44198218429. The reversal of 44198218388 is 88381289144.

It can be written as a sum of positive squares in 4 ways, for example, as 8770697104 + 35427521284 = 93652^2 + 188222^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94058 + ... + 311838.

It is an arithmetic number, because the mean of its divisors is an integer number (3258563175).

Almost surely, 2^44198218388 is an apocalyptic number.

It is an amenable number.

44198218388 is a deficient number, since it is larger than the sum of its proper divisors (34007297812).

44198218388 is a wasteful number, since it uses less digits than its factorization.

44198218388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218347 (or 218345 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 56.

The spelling of 44198218388 in words is "forty-four billion, one hundred ninety-eight million, two hundred eighteen thousand, three hundred eighty-eight".