1940543018 has 8 divisors (see below), whose sum is σ = 2911146912. Its totient is φ = 970160716.

The previous prime is 1940542993. The next prime is 1940543141. The reversal of 1940543018 is 8103450491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31430 + ... + 69777.

It is an arithmetic number, because the mean of its divisors is an integer number (363893364).

Almost surely, 2^1940543018 is an apocalyptic number.

1940543018 is a deficient number, since it is larger than the sum of its proper divisors (970603894).

1940543018 is a wasteful number, since it uses less digits than its factorization.

1940543018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110796.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1940543018 is about 44051.5949540990. The cubic root of 1940543018 is about 1247.3100593678.

The spelling of 1940543018 in words is "one billion, nine hundred forty million, five hundred forty-three thousand, eighteen".