440334321 has 16 divisors (see below), whose sum is σ = 680179584. Its totient is φ = 248171904.

The previous prime is 440334283. The next prime is 440334337. The reversal of 440334321 is 123433044.

It is not a de Polignac number, because 440334321 - 2¹⁰ = 440333297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440334291 and 440334300.

It is not an unprimeable number, because it can be changed into a prime (440334371) 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, 142086 + ... + 145151.

It is an arithmetic number, because the mean of its divisors is an integer number (42511224).

Almost surely, 2^440334321 is an apocalyptic number.

It is an amenable number.

440334321 is a deficient number, since it is larger than the sum of its proper divisors (239845263).

440334321 is a wasteful number, since it uses less digits than its factorization.

440334321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287320.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 440334321 is about 20984.1445143708. The cubic root of 440334321 is about 760.7830807874.

Adding to 440334321 its reverse (123433044), we get a palindrome (563767365).

The spelling of 440334321 in words is "four hundred forty million, three hundred thirty-four thousand, three hundred twenty-one".