43434604021340 has 24 divisors (see below), whose sum is σ = 104243049651552. Its totient is φ = 14891864235840.

The previous prime is 43434604021339. The next prime is 43434604021351. The reversal of 43434604021340 is 4312040643434.

It is a junction number, because it is equal to n+sod(n) for n = 43434604021294 and 43434604021303.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 155123585651 + ... + 155123585930.

It is an arithmetic number, because the mean of its divisors is an integer number (4343460402148).

Almost surely, 2^{43434604021340} is an apocalyptic number.

It is an amenable number.

43434604021340 is an abundant number, since it is smaller than the sum of its proper divisors (60808445630212).

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

43434604021340 is a wasteful number, since it uses less digits than its factorization.

43434604021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310247171597 (or 310247171595 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 43434604021340 its reverse (4312040643434), we get a palindrome (47746644664774).

The spelling of 43434604021340 in words is "forty-three trillion, four hundred thirty-four billion, six hundred four million, twenty-one thousand, three hundred forty".