40131443441 has 4 divisors (see below), whose sum is σ = 41876288832. Its totient is φ = 38386598052.

The previous prime is 40131443419. The next prime is 40131443449. The reversal of 40131443441 is 14434413104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40131443441 - 2¹⁸ = 40131181297 is a prime.

It is a super-2 number, since 2×40131443441² (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 (40131443449) 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, 872422661 + ... + 872422706.

It is an arithmetic number, because the mean of its divisors is an integer number (10469072208).

Almost surely, 2^40131443441 is an apocalyptic number.

It is an amenable number.

40131443441 is a deficient number, since it is larger than the sum of its proper divisors (1744845391).

40131443441 is a wasteful number, since it uses less digits than its factorization.

40131443441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744845390.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 40131443441 its reverse (14434413104), we get a palindrome (54565856545).

The spelling of 40131443441 in words is "forty billion, one hundred thirty-one million, four hundred forty-three thousand, four hundred forty-one".