440440004 has 12 divisors (see below), whose sum is σ = 770922684. Its totient is φ = 220176384.

The previous prime is 440439997. The next prime is 440440009. The reversal of 440440004 is 400044044.

It can be written as a sum of positive squares in 2 ways, for example, as 355247104 + 85192900 = 18848^2 + 9230^2 .

It is not an unprimeable number, because it can be changed into a prime (440440009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24812 + ... + 38684.

It is an arithmetic number, because the mean of its divisors is an integer number (64243557).

Almost surely, 2^440440004 is an apocalyptic number.

It is an amenable number.

440440004 is a deficient number, since it is larger than the sum of its proper divisors (330482680).

440440004 is a wasteful number, since it uses less digits than its factorization.

440440004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21814 (or 21812 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 440440004 is about 20986.6625264714. The cubic root of 440440004 is about 760.8439401565.

Adding to 440440004 its reverse (400044044), we get a palindrome (840484048).

The spelling of 440440004 in words is "four hundred forty million, four hundred forty thousand, four".