440444002006 has 4 divisors (see below), whose sum is σ = 660666003012. Its totient is φ = 220222001002.

The previous prime is 440444002001. The next prime is 440444002007. The reversal of 440444002006 is 600200444044.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×440444002006² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440444002001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111000500 + ... + 110111000503.

It is an arithmetic number, because the mean of its divisors is an integer number (165166500753).

Almost surely, 2^440444002006 is an apocalyptic number.

440444002006 is a deficient number, since it is larger than the sum of its proper divisors (220222001006).

440444002006 is a wasteful number, since it uses less digits than its factorization.

440444002006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220222001005.

The product of its (nonzero) digits is 12288, while the sum is 28.

The spelling of 440444002006 in words is "four hundred forty billion, four hundred forty-four million, two thousand, six".