1042544434420 has 12 divisors (see below), whose sum is σ = 2189343312324. Its totient is φ = 417017773760.

The previous prime is 1042544434369. The next prime is 1042544434427. The reversal of 1042544434420 is 244344452401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 529919937936 + 512624496484 = 727956^2 + 715978^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1042544434420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042544434427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26063610841 + ... + 26063610880.

It is an arithmetic number, because the mean of its divisors is an integer number (182445276027).

Almost surely, 2^{1042544434420} is an apocalyptic number.

1042544434420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042544434420 is an abundant number, since it is smaller than the sum of its proper divisors (1146798877904).

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

1042544434420 is a wasteful number, since it uses less digits than its factorization.

1042544434420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52127221730 (or 52127221728 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 1042544434420 its reverse (244344452401), we get a palindrome (1286888886821).

The spelling of 1042544434420 in words is "one trillion, forty-two billion, five hundred forty-four million, four hundred thirty-four thousand, four hundred twenty".