440350221 has 16 divisors (see below), whose sum is σ = 596683584. Its totient is φ = 288827904.

The previous prime is 440350177. The next prime is 440350223. The reversal of 440350221 is 122053044.

It is not a de Polignac number, because 440350221 - 2⁷ = 440350093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440350223) 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, 45970 + ... + 54716.

It is an arithmetic number, because the mean of its divisors is an integer number (37292724).

Almost surely, 2^440350221 is an apocalyptic number.

It is an amenable number.

440350221 is a deficient number, since it is larger than the sum of its proper divisors (156333363).

440350221 is a wasteful number, since it uses less digits than its factorization.

440350221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9020.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 440350221 is about 20984.5233684256. The cubic root of 440350221 is about 760.7922376975.

The spelling of 440350221 in words is "four hundred forty million, three hundred fifty thousand, two hundred twenty-one".