1949206818 has 32 divisors (see below), whose sum is σ = 4213944000. Its totient is φ = 597519936.

The previous prime is 1949206801. The next prime is 1949206823. The reversal of 1949206818 is 8186029491.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25468 + ... + 67431.

It is an arithmetic number, because the mean of its divisors is an integer number (131685750).

Almost surely, 2^1949206818 is an apocalyptic number.

1949206818 is an abundant number, since it is smaller than the sum of its proper divisors (2264737182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1949206818 is a wasteful number, since it uses less digits than its factorization.

1949206818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93186.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 1949206818 is about 44149.8224005488. The cubic root of 1949206818 is about 1249.1635615948.

The spelling of 1949206818 in words is "one billion, nine hundred forty-nine million, two hundred six thousand, eight hundred eighteen".