440220402242 has 4 divisors (see below), whose sum is σ = 660330603366. Its totient is φ = 220110201120.

The previous prime is 440220402241. The next prime is 440220402257. The reversal of 440220402242 is 242204022044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 438361843921 + 1858558321 = 662089^2 + 43111^2 .

It is not an unprimeable number, because it can be changed into a prime (440220402241) by changing a digit.

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 as a sum of consecutive naturals, namely, 110055100559 + ... + 110055100562.

Almost surely, 2^440220402242 is an apocalyptic number.

440220402242 is a deficient number, since it is larger than the sum of its proper divisors (220110201124).

440220402242 is a wasteful number, since it uses less digits than its factorization.

440220402242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220110201123.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 440220402242 its reverse (242204022044), we get a palindrome (682424424286).

The spelling of 440220402242 in words is "four hundred forty billion, two hundred twenty million, four hundred two thousand, two hundred forty-two".