440365465 has 4 divisors (see below), whose sum is σ = 528438564. Its totient is φ = 352292368.

The previous prime is 440365423. The next prime is 440365481. The reversal of 440365465 is 564563044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70341769 + 370023696 = 8387^2 + 19236^2 .

It is a cyclic number.

It is not a de Polignac number, because 440365465 - 2¹⁷ = 440234393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44036542 + ... + 44036551.

It is an arithmetic number, because the mean of its divisors is an integer number (132109641).

Almost surely, 2^440365465 is an apocalyptic number.

It is an amenable number.

440365465 is a deficient number, since it is larger than the sum of its proper divisors (88073099).

440365465 is an equidigital number, since it uses as much as digits as its factorization.

440365465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88073098.

The product of its (nonzero) digits is 172800, while the sum is 37.

The square root of 440365465 is about 20984.8865853499. The cubic root of 440365465 is about 760.8010166061.

The spelling of 440365465 in words is "four hundred forty million, three hundred sixty-five thousand, four hundred sixty-five".