43046305421 has 12 divisors (see below), whose sum is σ = 53019820188. Its totient is φ = 34726430592.

The previous prime is 43046305403. The next prime is 43046305427. The reversal of 43046305421 is 12450364034.

It can be written as a sum of positive squares in 2 ways, for example, as 30202616521 + 12843688900 = 173789^2 + 113330^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43046305421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43046305427) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25837286 + ... + 25838951.

It is an arithmetic number, because the mean of its divisors is an integer number (4418318349).

Almost surely, 2^43046305421 is an apocalyptic number.

It is an amenable number.

43046305421 is a deficient number, since it is larger than the sum of its proper divisors (9973514767).

43046305421 is a wasteful number, since it uses less digits than its factorization.

43046305421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51676268 (or 51676261 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 43046305421 its reverse (12450364034), we get a palindrome (55496669455).

The spelling of 43046305421 in words is "forty-three billion, forty-six million, three hundred five thousand, four hundred twenty-one".