44500138 has 4 divisors (see below), whose sum is σ = 66750210. Its totient is φ = 22250068.

The previous prime is 44500103. The next prime is 44500139. The reversal of 44500138 is 83100544.

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., 38725729 + 5774409 = 6223^2 + 2403^2 .

It is not an unprimeable number, because it can be changed into a prime (44500139) 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, 11125033 + ... + 11125036.

Almost surely, 2^44500138 is an apocalyptic number.

44500138 is a deficient number, since it is larger than the sum of its proper divisors (22250072).

44500138 is a wasteful number, since it uses less digits than its factorization.

44500138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22250071.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 44500138 is about 6670.8423755925. The cubic root of 44500138 is about 354.3674193867.

The spelling of 44500138 in words is "forty-four million, five hundred thousand, one hundred thirty-eight".