440422242 has 64 divisors (see below), whose sum is σ = 1019934720. Its totient is φ = 125630784.

The previous prime is 440422231. The next prime is 440422249. The reversal of 440422242 is 242224044.

It is not an unprimeable number, because it can be changed into a prime (440422249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66493 + ... + 72815.

It is an arithmetic number, because the mean of its divisors is an integer number (15936480).

Almost surely, 2^440422242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440422242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (509967360).

440422242 is an abundant number, since it is smaller than the sum of its proper divisors (579512478).

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

440422242 is a wasteful number, since it uses less digits than its factorization.

440422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 440422242 is about 20986.2393486780. The cubic root of 440422242 is about 760.8337122846.

Adding to 440422242 its reverse (242224044), we get a palindrome (682646286).

The spelling of 440422242 in words is "four hundred forty million, four hundred twenty-two thousand, two hundred forty-two".