440655459 has 16 divisors (see below), whose sum is σ = 629659392. Its totient is φ = 273401568.

The previous prime is 440655403. The next prime is 440655463. The reversal of 440655459 is 954556044.

It is not a de Polignac number, because 440655459 - 2²³ = 432266851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440655459.

It is not an unprimeable number, because it can be changed into a prime (440655559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83749 + ... + 88854.

It is an arithmetic number, because the mean of its divisors is an integer number (39353712).

Almost surely, 2^440655459 is an apocalyptic number.

440655459 is a deficient number, since it is larger than the sum of its proper divisors (189003933).

440655459 is a wasteful number, since it uses less digits than its factorization.

440655459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172666.

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 440655459 is about 20991.7950399674. The cubic root of 440655459 is about 760.9679834668.

The spelling of 440655459 in words is "four hundred forty million, six hundred fifty-five thousand, four hundred fifty-nine".