404444004002 has 4 divisors (see below), whose sum is σ = 606666006006. Its totient is φ = 202222002000.

The previous prime is 404444003983. The next prime is 404444004017. The reversal of 404444004002 is 200400444404.

It is a happy number.

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., 371918242201 + 32525761801 = 609851^2 + 180349^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101111000999 + ... + 101111001002.

Almost surely, 2^404444004002 is an apocalyptic number.

404444004002 is a deficient number, since it is larger than the sum of its proper divisors (202222002004).

404444004002 is a wasteful number, since it uses less digits than its factorization.

404444004002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202222002003.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404444004002 its reverse (200400444404), we get a palindrome (604844448406).

The spelling of 404444004002 in words is "four hundred four billion, four hundred forty-four million, four thousand, two".