1840236868 has 48 divisors (see below), whose sum is σ = 3426877440. Its totient is φ = 862250400.

The previous prime is 1840236851. The next prime is 1840236913. The reversal of 1840236868 is 8686320481.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 4804605 + ... + 4804987.

It is an arithmetic number, because the mean of its divisors is an integer number (71393280).

Almost surely, 2^1840236868 is an apocalyptic number.

It is an amenable number.

1840236868 is a deficient number, since it is larger than the sum of its proper divisors (1586640572).

1840236868 is a wasteful number, since it uses less digits than its factorization.

1840236868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 1840236868 is about 42897.9820970637. The cubic root of 1840236868 is about 1225.4377151312.

The spelling of 1840236868 in words is "one billion, eight hundred forty million, two hundred thirty-six thousand, eight hundred sixty-eight".