1942643158 has 16 divisors (see below), whose sum is σ = 3086046720. Its totient is φ = 915221736.

The previous prime is 1942643119. The next prime is 1942643167. The reversal of 1942643158 is 8513462491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312078 + ... + 318241.

It is an arithmetic number, because the mean of its divisors is an integer number (192877920).

Almost surely, 2^1942643158 is an apocalyptic number.

1942643158 is a deficient number, since it is larger than the sum of its proper divisors (1143403562).

1942643158 is a wasteful number, since it uses less digits than its factorization.

1942643158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630411.

The product of its digits is 207360, while the sum is 43.

The square root of 1942643158 is about 44075.4257835361. The cubic root of 1942643158 is about 1247.7598615286.

The spelling of 1942643158 in words is "one billion, nine hundred forty-two million, six hundred forty-three thousand, one hundred fifty-eight".