1942806243 has 12 divisors (see below), whose sum is σ = 3013332360. Its totient is φ = 1110174912.

The previous prime is 1942806191. The next prime is 1942806289. The reversal of 1942806243 is 3426082491.

It is not a de Polignac number, because 1942806243 - 2²¹ = 1940709091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1942806143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6608038 + ... + 6608331.

It is an arithmetic number, because the mean of its divisors is an integer number (251111030).

Almost surely, 2^1942806243 is an apocalyptic number.

1942806243 is a deficient number, since it is larger than the sum of its proper divisors (1070526117).

1942806243 is a wasteful number, since it uses less digits than its factorization.

1942806243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216386 (or 13216379 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1942806243 is about 44077.2758119192. The cubic root of 1942806243 is about 1247.7947770545.

The spelling of 1942806243 in words is "one billion, nine hundred forty-two million, eight hundred six thousand, two hundred forty-three".