440045323 has 4 divisors (see below), whose sum is σ = 465930360. Its totient is φ = 414160288.

The previous prime is 440045321. The next prime is 440045351. The reversal of 440045323 is 323540044.

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

It is a cyclic number.

It is not a de Polignac number, because 440045323 - 2¹ = 440045321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440045321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12942493 + ... + 12942526.

It is an arithmetic number, because the mean of its divisors is an integer number (116482590).

Almost surely, 2^440045323 is an apocalyptic number.

440045323 is a deficient number, since it is larger than the sum of its proper divisors (25885037).

440045323 is a wasteful number, since it uses less digits than its factorization.

440045323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25885036.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 440045323 is about 20977.2572802071. The cubic root of 440045323 is about 760.6166065912.

Adding to 440045323 its reverse (323540044), we get a palindrome (763585367).

The spelling of 440045323 in words is "four hundred forty million, forty-five thousand, three hundred twenty-three".