440243469 has 6 divisors (see below), whose sum is σ = 635907246. Its totient is φ = 293495640.

The previous prime is 440243429. The next prime is 440243477. The reversal of 440243469 is 964342044.

It can be written as a sum of positive squares in only one way, i.e., 220166244 + 220077225 = 14838^2 + 14835^2 .

It is not a de Polignac number, because 440243469 - 2²⁰ = 439194893 is a prime.

It is a super-2 number, since 2×440243469² = 387628623994307922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440243429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24457962 + ... + 24457979.

It is an arithmetic number, because the mean of its divisors is an integer number (105984541).

Almost surely, 2^440243469 is an apocalyptic number.

It is an amenable number.

440243469 is a deficient number, since it is larger than the sum of its proper divisors (195663777).

440243469 is a wasteful number, since it uses less digits than its factorization.

440243469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48915947 (or 48915944 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 440243469 is about 20981.9796253833. The cubic root of 440243469 is about 760.7307543199.

The spelling of 440243469 in words is "four hundred forty million, two hundred forty-three thousand, four hundred sixty-nine".