2040440031 has 64 divisors (see below), whose sum is σ = 3514060800. Its totient is φ = 1146127968.

The previous prime is 2040440027. The next prime is 2040440047. The reversal of 2040440031 is 1300440402.

It is not a de Polignac number, because 2040440031 - 2² = 2040440027 is a prime.

It is a super-2 number, since 2×2040440031² = 8326791040214561922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2040439986 and 2040440013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040440021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3296040 + ... + 3296658.

It is an arithmetic number, because the mean of its divisors is an integer number (54907200).

Almost surely, 2^2040440031 is an apocalyptic number.

2040440031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2040440031 is a deficient number, since it is larger than the sum of its proper divisors (1473620769).

2040440031 is a wasteful number, since it uses less digits than its factorization.

2040440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2040440031 is about 45171.2301249368. The cubic root of 2040440031 is about 1268.3563234066.

Adding to 2040440031 its reverse (1300440402), we get a palindrome (3340880433).

The spelling of 2040440031 in words is "two billion, forty million, four hundred forty thousand, thirty-one".