440045455 has 4 divisors (see below), whose sum is σ = 528054552. Its totient is φ = 352036360.

The previous prime is 440045429. The next prime is 440045509. The reversal of 440045455 is 554540044.

It is a happy number.

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

It is not a de Polignac number, because 440045455 - 2¹¹ = 440043407 is a prime.

It is a Duffinian number.

It is a congruent 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, 44004541 + ... + 44004550.

It is an arithmetic number, because the mean of its divisors is an integer number (132013638).

Almost surely, 2^440045455 is an apocalyptic number.

440045455 is a deficient number, since it is larger than the sum of its proper divisors (88009097).

440045455 is an equidigital number, since it uses as much as digits as its factorization.

440045455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88009096.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 440045455 is about 20977.2604264713. The cubic root of 440045455 is about 760.6166826450.

Adding to 440045455 its reverse (554540044), we get a palindrome (994585499).

The spelling of 440045455 in words is "four hundred forty million, forty-five thousand, four hundred fifty-five".