1840044218 has 8 divisors (see below), whose sum is σ = 2824254048. Its totient is φ = 898626204.

The previous prime is 1840044191. The next prime is 1840044253. The reversal of 1840044218 is 8124400481.

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

It is a Curzon number.

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, 10697846 + ... + 10698017.

It is an arithmetic number, because the mean of its divisors is an integer number (353031756).

Almost surely, 2^1840044218 is an apocalyptic number.

1840044218 is a deficient number, since it is larger than the sum of its proper divisors (984209830).

1840044218 is a wasteful number, since it uses less digits than its factorization.

1840044218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21395908.

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 1840044218 is about 42895.7365946780. The cubic root of 1840044218 is about 1225.3949509236.

Adding to 1840044218 its reverse (8124400481), we get a palindrome (9964444699).

The spelling of 1840044218 in words is "one billion, eight hundred forty million, forty-four thousand, two hundred eighteen".