44255138 has 4 divisors (see below), whose sum is σ = 66382710. Its totient is φ = 22127568.

The previous prime is 44255137. The next prime is 44255171. The reversal of 44255138 is 83155244.

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., 37002889 + 7252249 = 6083^2 + 2693^2 .

It is not an unprimeable number, because it can be changed into a prime (44255137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11063783 + ... + 11063786.

Almost surely, 2^44255138 is an apocalyptic number.

44255138 is a deficient number, since it is larger than the sum of its proper divisors (22127572).

44255138 is a wasteful number, since it uses less digits than its factorization.

44255138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22127571.

The product of its digits is 19200, while the sum is 32.

The square root of 44255138 is about 6652.4535323443. The cubic root of 44255138 is about 353.7158870325.

The spelling of 44255138 in words is "forty-four million, two hundred fifty-five thousand, one hundred thirty-eight".