2040746643 has 40 divisors (see below), whose sum is σ = 3336949616. Its totient is φ = 1235217600.

The previous prime is 2040746639. The next prime is 2040746651. The reversal of 2040746643 is 3466470402.

2040746643 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 7 + 4 + 6 + 643 = 666.

It is not a de Polignac number, because 2040746643 - 2² = 2040746639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2040746598 and 2040746607.

It is not an unprimeable number, because it can be changed into a prime (2040746633) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48348 + ... + 80118.

Almost surely, 2^2040746643 is an apocalyptic number.

2040746643 is a deficient number, since it is larger than the sum of its proper divisors (1296202973).

2040746643 is a wasteful number, since it uses less digits than its factorization.

2040746643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31857 (or 31848 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 2040746643 is about 45174.6238833264. The cubic root of 2040746643 is about 1268.4198511727.

The spelling of 2040746643 in words is "two billion, forty million, seven hundred forty-six thousand, six hundred forty-three".