440221430 has 16 divisors (see below), whose sum is σ = 864435024. Its totient is φ = 160080480.

The previous prime is 440221429. The next prime is 440221447. The reversal of 440221430 is 34122044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000897 + ... + 2001116.

It is an arithmetic number, because the mean of its divisors is an integer number (54027189).

Almost surely, 2^440221430 is an apocalyptic number.

440221430 is a deficient number, since it is larger than the sum of its proper divisors (424213594).

440221430 is a wasteful number, since it uses less digits than its factorization.

440221430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002031.

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

The square root of 440221430 is about 20981.4544300437. The cubic root of 440221430 is about 760.7180598103.

Adding to 440221430 its reverse (34122044), we get a palindrome (474343474).

The spelling of 440221430 in words is "four hundred forty million, two hundred twenty-one thousand, four hundred thirty".