440332664 has 16 divisors (see below), whose sum is σ = 834136800. Its totient is φ = 217896192.

The previous prime is 440332663. The next prime is 440332667. The reversal of 440332664 is 466233044.

It is a self number, because there is not a number n which added to its sum of digits gives 440332664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440332663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282944 + ... + 284495.

It is an arithmetic number, because the mean of its divisors is an integer number (52133550).

Almost surely, 2^440332664 is an apocalyptic number.

It is an amenable number.

440332664 is a deficient number, since it is larger than the sum of its proper divisors (393804136).

440332664 is a wasteful number, since it uses less digits than its factorization.

440332664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567542 (or 567538 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 440332664 is about 20984.1050321428. The cubic root of 440332664 is about 760.7821264980.

The spelling of 440332664 in words is "four hundred forty million, three hundred thirty-two thousand, six hundred sixty-four".