440252003445489 has 27 divisors (see below), whose sum is σ = 638591184199137. Its totient is φ = 292273416316800.

The previous prime is 440252003445421. The next prime is 440252003445517. The reversal of 440252003445489 is 984544300252044.

The square root of 440252003445489 is 20982183.

It is a perfect power (a square), and thus also a powerful number.

440252003445489 is a `hidden beast` number, since 4 + 4 + 0 + 2 + 52 + 0 + 0 + 3 + 44 + 548 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 278824306069089 + 161427697376400 = 16698033^2 + 12705420^2 .

It is not a de Polignac number, because 440252003445489 - 2³¹ = 440249855961841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440252003445409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15170103799 + ... + 15170132819.

Almost surely, 2^{440252003445489} is an apocalyptic number.

440252003445489 is the 20982183-rd square number.

440252003445489 is the 10491092-nd centered octagonal number.

It is an amenable number.

440252003445489 is a deficient number, since it is larger than the sum of its proper divisors (198339180753648).

440252003445489 is an frugal number, since it uses more digits than its factorization.

440252003445489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58530 (or 29265 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 54.

The spelling of 440252003445489 in words is "four hundred forty trillion, two hundred fifty-two billion, three million, four hundred forty-five thousand, four hundred eighty-nine".