43444432243 has 4 divisors (see below), whose sum is σ = 43448536368. Its totient is φ = 43440328120.

The previous prime is 43444432223. The next prime is 43444432247. The reversal of 43444432243 is 34223444434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34223444434 = 2 ⋅17111722217.

It is a cyclic number.

It is not a de Polignac number, because 43444432243 - 2²⁹ = 42907561331 is a prime.

It is a super-2 number, since 2×43444432243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43444432247) 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, 2036143 + ... + 2057368.

It is an arithmetic number, because the mean of its divisors is an integer number (10862134092).

Almost surely, 2^43444432243 is an apocalyptic number.

43444432243 is a deficient number, since it is larger than the sum of its proper divisors (4104125).

43444432243 is a wasteful number, since it uses less digits than its factorization.

43444432243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104124.

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

Adding to 43444432243 its reverse (34223444434), we get a palindrome (77667876677).

The spelling of 43444432243 in words is "forty-three billion, four hundred forty-four million, four hundred thirty-two thousand, two hundred forty-three".