440221339 has 4 divisors (see below), whose sum is σ = 448527456. Its totient is φ = 431915224.

The previous prime is 440221337. The next prime is 440221351. The reversal of 440221339 is 933122044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440221339 - 2¹ = 440221337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440221333) 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, 4152979 + ... + 4153084.

It is an arithmetic number, because the mean of its divisors is an integer number (112131864).

Almost surely, 2^440221339 is an apocalyptic number.

440221339 is a deficient number, since it is larger than the sum of its proper divisors (8306117).

440221339 is an equidigital number, since it uses as much as digits as its factorization.

440221339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8306116.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 440221339 is about 20981.4522614618. The cubic root of 440221339 is about 760.7180073932.

The spelling of 440221339 in words is "four hundred forty million, two hundred twenty-one thousand, three hundred thirty-nine".