440064424 has 16 divisors (see below), whose sum is σ = 825386400. Its totient is φ = 219961392.

The previous prime is 440064389. The next prime is 440064433. The reversal of 440064424 is 424460044.

It is a junction number, because it is equal to n+sod(n) for n = 440064392 and 440064401.

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, 25309 + ... + 38995.

It is an arithmetic number, because the mean of its divisors is an integer number (51586650).

Almost surely, 2^440064424 is an apocalyptic number.

It is an amenable number.

440064424 is a deficient number, since it is larger than the sum of its proper divisors (385321976).

440064424 is a wasteful number, since it uses less digits than its factorization.

440064424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17712 (or 17708 counting only the distinct ones).

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

The square root of 440064424 is about 20977.7125540417. The cubic root of 440064424 is about 760.6276117663.

The spelling of 440064424 in words is "four hundred forty million, sixty-four thousand, four hundred twenty-four".