43404206044421 has 8 divisors (see below), whose sum is σ = 44228248043544. Its totient is φ = 42580352738560.

The previous prime is 43404206044411. The next prime is 43404206044429. The reversal of 43404206044421 is 12444060240434.

It can be written as a sum of positive squares in 4 ways, for example, as 20782529793796 + 22621676250625 = 4558786^2 + 4756225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43404206044421 - 2¹⁴ = 43404206028037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43404206044429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46708856 + ... + 47629041.

It is an arithmetic number, because the mean of its divisors is an integer number (5528531005443).

Almost surely, 2^{43404206044421} is an apocalyptic number.

It is an amenable number.

43404206044421 is a deficient number, since it is larger than the sum of its proper divisors (824041999123).

43404206044421 is an equidigital number, since it uses as much as digits as its factorization.

43404206044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94346631.

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 43404206044421 its reverse (12444060240434), we get a palindrome (55848266284855).

The spelling of 43404206044421 in words is "forty-three trillion, four hundred four billion, two hundred six million, forty-four thousand, four hundred twenty-one".