44223538 has 4 divisors (see below), whose sum is σ = 66335310. Its totient is φ = 22111768.

The previous prime is 44223527. The next prime is 44223539. The reversal of 44223538 is 83532244.

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., 29192409 + 15031129 = 5403^2 + 3877^2 .

It is a Smith number, since the sum of its digits (31) 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 (44223539) 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, 11055883 + ... + 11055886.

Almost surely, 2^44223538 is an apocalyptic number.

44223538 is a deficient number, since it is larger than the sum of its proper divisors (22111772).

44223538 is a wasteful number, since it uses less digits than its factorization.

44223538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22111771.

The product of its digits is 23040, while the sum is 31.

The square root of 44223538 is about 6650.0780446548. The cubic root of 44223538 is about 353.6316777258.

The spelling of 44223538 in words is "forty-four million, two hundred twenty-three thousand, five hundred thirty-eight".