44200138 has 4 divisors (see below), whose sum is σ = 66300210. Its totient is φ = 22100068.

The previous prime is 44200133. The next prime is 44200139. The reversal of 44200138 is 83100244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32455809 + 11744329 = 5697^2 + 3427^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (44200133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050033 + ... + 11050036.

Almost surely, 2^44200138 is an apocalyptic number.

44200138 is a deficient number, since it is larger than the sum of its proper divisors (22100072).

44200138 is a wasteful number, since it uses less digits than its factorization.

44200138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22100071.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 44200138 is about 6648.3184340102. The cubic root of 44200138 is about 353.5692943468.

The spelling of 44200138 in words is "forty-four million, two hundred thousand, one hundred thirty-eight".