440231142434 has 32 divisors (see below), whose sum is σ = 670426714944. Its totient is φ = 216784512000.

The previous prime is 440231142431. The next prime is 440231142437. The reversal of 440231142434 is 434241132044.

It is an interprime number because it is at equal distance from previous prime (440231142431) and next prime (440231142437).

It is a self number, because there is not a number n which added to its sum of digits gives 440231142434.

It is not an unprimeable number, because it can be changed into a prime (440231142431) 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, 24553397 + ... + 24571319.

It is an arithmetic number, because the mean of its divisors is an integer number (20950834842).

Almost surely, 2^440231142434 is an apocalyptic number.

440231142434 is a deficient number, since it is larger than the sum of its proper divisors (230195572510).

440231142434 is a wasteful number, since it uses less digits than its factorization.

440231142434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18722.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 440231142434 its reverse (434241132044), we get a palindrome (874472274478).

The spelling of 440231142434 in words is "four hundred forty billion, two hundred thirty-one million, one hundred forty-two thousand, four hundred thirty-four".