42143463440 has 40 divisors (see below), whose sum is σ = 105520751448. Its totient is φ = 15560663040.

The previous prime is 42143463421. The next prime is 42143463457. The reversal of 42143463440 is 4436434124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 97140736 + 42046322704 = 9856^2 + 205052^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 42143463440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20260241 + ... + 20262320.

Almost surely, 2^42143463440 is an apocalyptic number.

42143463440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42143463440 is an abundant number, since it is smaller than the sum of its proper divisors (63377288008).

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

42143463440 is a wasteful number, since it uses less digits than its factorization.

42143463440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40522587 (or 40522581 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 42143463440 its reverse (4436434124), we get a palindrome (46579897564).

The spelling of 42143463440 in words is "forty-two billion, one hundred forty-three million, four hundred sixty-three thousand, four hundred forty".