440314221 has 16 divisors (see below), whose sum is σ = 611424000. Its totient is φ = 281510208.

The previous prime is 440314181. The next prime is 440314243. The reversal of 440314221 is 122413044.

It is not a de Polignac number, because 440314221 - 2²¹ = 438217069 is a prime.

It is a super-2 number, since 2×440314221² = 387753226429673682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440314261) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4021 + ... + 29946.

It is an arithmetic number, because the mean of its divisors is an integer number (38214000).

Almost surely, 2^440314221 is an apocalyptic number.

It is an amenable number.

440314221 is a deficient number, since it is larger than the sum of its proper divisors (171109779).

440314221 is a wasteful number, since it uses less digits than its factorization.

440314221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34148.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 440314221 is about 20983.6655758712. The cubic root of 440314221 is about 760.7715047554.

Adding to 440314221 its reverse (122413044), we get a palindrome (562727265).

The spelling of 440314221 in words is "four hundred forty million, three hundred fourteen thousand, two hundred twenty-one".