42443321334340 has 48 divisors (see below), whose sum is σ = 91543340070000. Its totient is φ = 16517864673792.

The previous prime is 42443321334313. The next prime is 42443321334409. The reversal of 42443321334340 is 4343312334424.

It can be written as a sum of positive squares in 8 ways, for example, as 194673323524 + 42248648010816 = 441218^2 + 6499896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42443321334293 and 42443321334302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19002786 + ... + 21118534.

It is an arithmetic number, because the mean of its divisors is an integer number (1907152918125).

Almost surely, 2^{42443321334340} is an apocalyptic number.

It is an amenable number.

42443321334340 is an abundant number, since it is smaller than the sum of its proper divisors (49100018735660).

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

42443321334340 is a wasteful number, since it uses less digits than its factorization.

42443321334340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142904 (or 2142902 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 40.

Adding to 42443321334340 its reverse (4343312334424), we get a palindrome (46786633668764).

The spelling of 42443321334340 in words is "forty-two trillion, four hundred forty-three billion, three hundred twenty-one million, three hundred thirty-four thousand, three hundred forty".