41443440431 has 4 divisors (see below), whose sum is σ = 41466685872. Its totient is φ = 41420194992.

The previous prime is 41443440427. The next prime is 41443440439. The reversal of 41443440431 is 13404434414.

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

It is a cyclic number.

It is not a de Polignac number, because 41443440431 - 2² = 41443440427 is a prime.

It is a super-2 number, since 2×41443440431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41443440439) 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, 11620046 + ... + 11623611.

It is an arithmetic number, because the mean of its divisors is an integer number (10366671468).

Almost surely, 2^41443440431 is an apocalyptic number.

41443440431 is a deficient number, since it is larger than the sum of its proper divisors (23245441).

41443440431 is a wasteful number, since it uses less digits than its factorization.

41443440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23245440.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 41443440431 its reverse (13404434414), we get a palindrome (54847874845).

The spelling of 41443440431 in words is "forty-one billion, four hundred forty-three million, four hundred forty thousand, four hundred thirty-one".