440421032450 has 48 divisors (see below), whose sum is σ = 938861694720. Its totient is φ = 150573688320.

The previous prime is 440421032423. The next prime is 440421032459. The reversal of 440421032450 is 54230124044.

It is not an unprimeable number, because it can be changed into a prime (440421032459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1658810 + ... + 1905909.

It is an arithmetic number, because the mean of its divisors is an integer number (19559618640).

Almost surely, 2^440421032450 is an apocalyptic number.

440421032450 is an abundant number, since it is smaller than the sum of its proper divisors (498440662270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440421032450 is a wasteful number, since it uses less digits than its factorization.

440421032450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565091 (or 3565086 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 440421032450 its reverse (54230124044), we get a palindrome (494651156494).

The spelling of 440421032450 in words is "four hundred forty billion, four hundred twenty-one million, thirty-two thousand, four hundred fifty".