40240442444131 has 4 divisors (see below), whose sum is σ = 40529942030200. Its totient is φ = 39950942858064.

The previous prime is 40240442444053. The next prime is 40240442444149. The reversal of 40240442444131 is 13144424404204.

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 40240442444131 - 2¹⁵ = 40240442411363 is a prime.

It is a super-2 number, since 2×40240442444131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40240442444161) 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, 144749792826 + ... + 144749793103.

It is an arithmetic number, because the mean of its divisors is an integer number (10132485507550).

Almost surely, 2^{40240442444131} is an apocalyptic number.

40240442444131 is a deficient number, since it is larger than the sum of its proper divisors (289499586069).

40240442444131 is a wasteful number, since it uses less digits than its factorization.

40240442444131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289499586068.

The product of its (nonzero) digits is 196608, while the sum is 37.

Adding to 40240442444131 its reverse (13144424404204), we get a palindrome (53384866848335).

The spelling of 40240442444131 in words is "forty trillion, two hundred forty billion, four hundred forty-two million, four hundred forty-four thousand, one hundred thirty-one".