440034221 has 4 divisors (see below), whose sum is σ = 480037344. Its totient is φ = 400031100.

The previous prime is 440034193. The next prime is 440034227. The reversal of 440034221 is 122430044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440034221 - 2⁶ = 440034157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 440034193 and 440034202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440034227) 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, 20001545 + ... + 20001566.

It is an arithmetic number, because the mean of its divisors is an integer number (120009336).

Almost surely, 2^440034221 is an apocalyptic number.

It is an amenable number.

440034221 is a deficient number, since it is larger than the sum of its proper divisors (40003123).

440034221 is a wasteful number, since it uses less digits than its factorization.

440034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40003122.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 440034221 is about 20976.9926586248. The cubic root of 440034221 is about 760.6102099496.

Adding to 440034221 its reverse (122430044), we get a palindrome (562464265).

The spelling of 440034221 in words is "four hundred forty million, thirty-four thousand, two hundred twenty-one".