440222042440 has 32 divisors (see below), whose sum is σ = 990608588280. Its totient is φ = 176069440512.

The previous prime is 440222042419. The next prime is 440222042459. The reversal of 440222042440 is 44240222044.

It can be written as a sum of positive squares in 4 ways, for example, as 383708391364 + 56513651076 = 619442^2 + 237726^2 .

It is a super-2 number, since 2×440222042440² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 440222042399 and 440222042408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234657 + ... + 967216.

Almost surely, 2^440222042440 is an apocalyptic number.

440222042440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440222042440 is an abundant number, since it is smaller than the sum of its proper divisors (550386545840).

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

440222042440 is a wasteful number, since it uses less digits than its factorization.

440222042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211041 (or 1211037 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 440222042440 its reverse (44240222044), we get a palindrome (484462264484).

The spelling of 440222042440 in words is "four hundred forty billion, two hundred twenty-two million, forty-two thousand, four hundred forty".