440040004 has 12 divisors (see below), whose sum is σ = 775949328. Its totient is φ = 218340200.

The previous prime is 440039983. The next prime is 440040011. The reversal of 440040004 is 400040044.

It is a self number, because there is not a number n which added to its sum of digits gives 440040004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419362 + ... + 420409.

It is an arithmetic number, because the mean of its divisors is an integer number (64662444).

Almost surely, 2^440040004 is an apocalyptic number.

It is an amenable number.

440040004 is a deficient number, since it is larger than the sum of its proper divisors (335909324).

440040004 is a wasteful number, since it uses less digits than its factorization.

440040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839906 (or 839904 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440040004 is about 20977.1304996656. The cubic root of 440040004 is about 760.6135419553.

Adding to 440040004 its reverse (400040044), we get a palindrome (840080048).

The spelling of 440040004 in words is "four hundred forty million, forty thousand, four".