440420064042 has 32 divisors (see below), whose sum is σ = 1006769289600. Its totient is φ = 125822446848.

The previous prime is 440420064023. The next prime is 440420064043. The reversal of 440420064042 is 240460024044.

It is not an unprimeable number, because it can be changed into a prime (440420064043) 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 in 15 ways as a sum of consecutive naturals, for example, 38067 + ... + 939302.

It is an arithmetic number, because the mean of its divisors is an integer number (31461540300).

Almost surely, 2^440420064042 is an apocalyptic number.

440420064042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

440420064042 is an abundant number, since it is smaller than the sum of its proper divisors (566349225558).

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

440420064042 is a wasteful number, since it uses less digits than its factorization.

440420064042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988110.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 440420064042 its reverse (240460024044), we get a palindrome (680880088086).

The spelling of 440420064042 in words is "four hundred forty billion, four hundred twenty million, sixty-four thousand, forty-two".