2040405820424 has 16 divisors (see below), whose sum is σ = 3830788205820. Its totient is φ = 1018862298880.

The previous prime is 2040405820421. The next prime is 2040405820463. The reversal of 2040405820424 is 4240285040402.

It can be written as a sum of positive squares in 2 ways, for example, as 1453910231524 + 586495588900 = 1205782^2 + 765830^2 .

It is not an unprimeable number, because it can be changed into a prime (2040405820421) 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, 167569949 + ... + 167582124.

Almost surely, 2^{2040405820424} is an apocalyptic number.

It is an amenable number.

2040405820424 is a deficient number, since it is larger than the sum of its proper divisors (1790382385396).

2040405820424 is a wasteful number, since it uses less digits than its factorization.

2040405820424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335152840 (or 335152836 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 35.

The spelling of 2040405820424 in words is "two trillion, forty billion, four hundred five million, eight hundred twenty thousand, four hundred twenty-four".