440347844 has 6 divisors (see below), whose sum is σ = 770608734. Its totient is φ = 220173920.

The previous prime is 440347823. The next prime is 440347849. The reversal of 440347844 is 448743044.

It can be written as a sum of positive squares in only one way, i.e., 246804100 + 193543744 = 15710^2 + 13912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440347798 and 440347807.

It is not an unprimeable number, because it can be changed into a prime (440347849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55043477 + ... + 55043484.

It is an arithmetic number, because the mean of its divisors is an integer number (128434789).

Almost surely, 2^440347844 is an apocalyptic number.

It is an amenable number.

440347844 is a deficient number, since it is larger than the sum of its proper divisors (330260890).

440347844 is a wasteful number, since it uses less digits than its factorization.

440347844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110086965 (or 110086963 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 38.

The square root of 440347844 is about 20984.4667313706. The cubic root of 440347844 is about 760.7908687823.

The spelling of 440347844 in words is "four hundred forty million, three hundred forty-seven thousand, eight hundred forty-four".