2049680218 has 8 divisors (see below), whose sum is σ = 3075450048. Its totient is φ = 1024530204.

The previous prime is 2049680209. The next prime is 2049680251. The reversal of 2049680218 is 8120869402.

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

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 3 ways as a sum of consecutive naturals, for example, 146596 + ... + 159967.

It is an arithmetic number, because the mean of its divisors is an integer number (384431256).

Almost surely, 2^2049680218 is an apocalyptic number.

2049680218 is a deficient number, since it is larger than the sum of its proper divisors (1025769830).

2049680218 is a wasteful number, since it uses less digits than its factorization.

2049680218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309908.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2049680218 is about 45273.3941515323. The cubic root of 2049680218 is about 1270.2680356828.

The spelling of 2049680218 in words is "two billion, forty-nine million, six hundred eighty thousand, two hundred eighteen".