440864445 has 16 divisors (see below), whose sum is σ = 806152320. Its totient is φ = 201537984.

The previous prime is 440864443. The next prime is 440864449. The reversal of 440864445 is 544468044.

It is not a de Polignac number, because 440864445 - 2¹ = 440864443 is a prime.

It is a super-2 number, since 2×440864445² = 388722917730316050, 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 (440864443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099250 + ... + 2099459.

It is an arithmetic number, because the mean of its divisors is an integer number (50384520).

Almost surely, 2^440864445 is an apocalyptic number.

It is an amenable number.

440864445 is a deficient number, since it is larger than the sum of its proper divisors (365287875).

440864445 is a wasteful number, since it uses less digits than its factorization.

440864445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198724.

The product of its (nonzero) digits is 245760, while the sum is 39.

The square root of 440864445 is about 20996.7722519439. The cubic root of 440864445 is about 761.0882637731.

The spelling of 440864445 in words is "four hundred forty million, eight hundred sixty-four thousand, four hundred forty-five".