440220442042 has 8 divisors (see below), whose sum is σ = 660333762036. Its totient is φ = 220109188032.

The previous prime is 440220442033. The next prime is 440220442063. The reversal of 440220442042 is 240244022044.

It can be written as a sum of positive squares in 2 ways, for example, as 369979011081 + 70241430961 = 608259^2 + 265031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×440220442042² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440220442042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234738 + ... + 967234.

Almost surely, 2^440220442042 is an apocalyptic number.

440220442042 is a deficient number, since it is larger than the sum of its proper divisors (220113319994).

440220442042 is a wasteful number, since it uses less digits than its factorization.

440220442042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032992.

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

Adding to 440220442042 its reverse (240244022044), we get a palindrome (680464464086).

The spelling of 440220442042 in words is "four hundred forty billion, two hundred twenty million, four hundred forty-two thousand, forty-two".