40040444031 has 48 divisors (see below), whose sum is σ = 65265704064. Its totient is φ = 21744023616.

The previous prime is 40040444023. The next prime is 40040444039. The reversal of 40040444031 is 13044404004.

40040444031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40040444023) and next prime (40040444039).

It is not a de Polignac number, because 40040444031 - 2³ = 40040444023 is a prime.

It is a super-2 number, since 2×40040444031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40040443992 and 40040444010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040444039) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148276 + ... + 319478.

It is an arithmetic number, because the mean of its divisors is an integer number (1359702168).

Almost surely, 2^40040444031 is an apocalyptic number.

40040444031 is a deficient number, since it is larger than the sum of its proper divisors (25225260033).

40040444031 is a wasteful number, since it uses less digits than its factorization.

40040444031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171300 (or 171293 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40040444031 its reverse (13044404004), we get a palindrome (53084848035).

The spelling of 40040444031 in words is "forty billion, forty million, four hundred forty-four thousand, thirty-one".