43404420032443 has 4 divisors (see below), whose sum is σ = 45957621210840. Its totient is φ = 40851218854048.

The previous prime is 43404420032387. The next prime is 43404420032453. The reversal of 43404420032443 is 34423002440434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43404420032443 is a prime.

It is a super-3 number, since 3×43404420032443³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43404420032453) 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, 1276600589173 + ... + 1276600589206.

It is an arithmetic number, because the mean of its divisors is an integer number (11489405302710).

Almost surely, 2^{43404420032443} is an apocalyptic number.

43404420032443 is a deficient number, since it is larger than the sum of its proper divisors (2553201178397).

43404420032443 is a wasteful number, since it uses less digits than its factorization.

43404420032443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553201178396.

The product of its (nonzero) digits is 442368, while the sum is 37.

Adding to 43404420032443 its reverse (34423002440434), we get a palindrome (77827422472877).

The spelling of 43404420032443 in words is "forty-three trillion, four hundred four billion, four hundred twenty million, thirty-two thousand, four hundred forty-three".