440221330 has 8 divisors (see below), whose sum is σ = 792398412. Its totient is φ = 176088528.

The previous prime is 440221321. The next prime is 440221333. The reversal of 440221330 is 33122044.

It can be written as a sum of positive squares in 2 ways, for example, as 426876921 + 13344409 = 20661^2 + 3653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 440221298 and 440221307.

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, 22011057 + ... + 22011076.

Almost surely, 2^440221330 is an apocalyptic number.

440221330 is a deficient number, since it is larger than the sum of its proper divisors (352177082).

440221330 is a wasteful number, since it uses less digits than its factorization.

440221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44022140.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 440221330 is about 20981.4520469866. The cubic root of 440221330 is about 760.7180022091.

Adding to 440221330 its reverse (33122044), we get a palindrome (473343374).

The spelling of 440221330 in words is "four hundred forty million, two hundred twenty-one thousand, three hundred thirty".