440140214242 has 32 divisors (see below), whose sum is σ = 710053133184. Its totient is φ = 204083510400.

The previous prime is 440140214233. The next prime is 440140214249. The reversal of 440140214242 is 242412041044.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 440140214242.

It is not an unprimeable number, because it can be changed into a prime (440140214249) 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, 18117 + ... + 938407.

It is an arithmetic number, because the mean of its divisors is an integer number (22189160412).

Almost surely, 2^440140214242 is an apocalyptic number.

440140214242 is a deficient number, since it is larger than the sum of its proper divisors (269912918942).

440140214242 is a wasteful number, since it uses less digits than its factorization.

440140214242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920634.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 440140214242 its reverse (242412041044), we get a palindrome (682552255286).

The spelling of 440140214242 in words is "four hundred forty billion, one hundred forty million, two hundred fourteen thousand, two hundred forty-two".