440340405352142 has 8 divisors (see below), whose sum is σ = 660519190442856. Its totient is φ = 220167341871192.

The previous prime is 440340405352093. The next prime is 440340405352151. The reversal of 440340405352142 is 241253504043044.

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

It is a self number, because there is not a number n which added to its sum of digits gives 440340405352142.

It is a congruent number.

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, 1430210033 + ... + 1430517884.

It is an arithmetic number, because the mean of its divisors is an integer number (82564898805357).

Almost surely, 2^{440340405352142} is an apocalyptic number.

440340405352142 is a deficient number, since it is larger than the sum of its proper divisors (220178785090714).

440340405352142 is a wasteful number, since it uses less digits than its factorization.

440340405352142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860804882.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 440340405352142 its reverse (241253504043044), we get a palindrome (681593909395186).

The spelling of 440340405352142 in words is "four hundred forty trillion, three hundred forty billion, four hundred five million, three hundred fifty-two thousand, one hundred forty-two".