440420242242 has 16 divisors (see below), whose sum is σ = 887564459232. Its totient is φ = 145686084960.

The previous prime is 440420242181. The next prime is 440420242247. The reversal of 440420242242 is 242242024044.

It is a happy number.

It is a super-2 number, since 2×440420242242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (440420242247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280164763 + ... + 280166334.

It is an arithmetic number, because the mean of its divisors is an integer number (55472778702).

Almost surely, 2^440420242242 is an apocalyptic number.

440420242242 is an abundant number, since it is smaller than the sum of its proper divisors (447144216990).

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

440420242242 is a wasteful number, since it uses less digits than its factorization.

440420242242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560331233.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 440420242242 its reverse (242242024044), we get a palindrome (682662266286).

It can be divided in two parts, 4404202 and 42242, that added together give a palindrome (4446444).

The spelling of 440420242242 in words is "four hundred forty billion, four hundred twenty million, two hundred forty-two thousand, two hundred forty-two".