2043131644 has 12 divisors (see below), whose sum is σ = 3581746168. Its totient is φ = 1019775600.

The previous prime is 2043131641. The next prime is 2043131659. The reversal of 2043131644 is 4461313402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043131641) 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, 444987 + ... + 449554.

Almost surely, 2^2043131644 is an apocalyptic number.

It is an amenable number.

2043131644 is a deficient number, since it is larger than the sum of its proper divisors (1538614524).

2043131644 is a wasteful number, since it uses less digits than its factorization.

2043131644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895116 (or 895114 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2043131644 is about 45201.0137496937. The cubic root of 2043131644 is about 1268.9137888348.

The spelling of 2043131644 in words is "two billion, forty-three million, one hundred thirty-one thousand, six hundred forty-four".