440331303421 has 16 divisors (see below), whose sum is σ = 479833200000. Its totient is φ = 402482678976.

The previous prime is 440331303407. The next prime is 440331303437. The reversal of 440331303421 is 124303133044.

It is a cyclic number.

It is not a de Polignac number, because 440331303421 - 2⁵ = 440331303389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440331303421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440331303481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485235 + ... + 1056463.

It is an arithmetic number, because the mean of its divisors is an integer number (29989575000).

Almost surely, 2^440331303421 is an apocalyptic number.

It is an amenable number.

440331303421 is a deficient number, since it is larger than the sum of its proper divisors (39501896579).

440331303421 is a wasteful number, since it uses less digits than its factorization.

440331303421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572676.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 440331303421 its reverse (124303133044), we get a palindrome (564634436465).

The spelling of 440331303421 in words is "four hundred forty billion, three hundred thirty-one million, three hundred three thousand, four hundred twenty-one".