4044644938 has 4 divisors (see below), whose sum is σ = 6066967410. Its totient is φ = 2022322468.

The previous prime is 4044644909. The next prime is 4044644939. The reversal of 4044644938 is 8394464404.

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., 4025521809 + 19123129 = 63447^2 + 4373^2 .

It is not an unprimeable number, because it can be changed into a prime (4044644939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011161233 + ... + 1011161236.

Almost surely, 2^4044644938 is an apocalyptic number.

4044644938 is a deficient number, since it is larger than the sum of its proper divisors (2022322472).

4044644938 is a wasteful number, since it uses less digits than its factorization.

4044644938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022322471.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The square root of 4044644938 is about 63597.5230492509. The cubic root of 4044644938 is about 1593.2850003818.

The spelling of 4044644938 in words is "four billion, forty-four million, six hundred forty-four thousand, nine hundred thirty-eight".