349784866 has 16 divisors (see below), whose sum is σ = 529095168. Its totient is φ = 173426400.

The previous prime is 349784861. The next prime is 349784909. The reversal of 349784866 is 668487943.

349784866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (349784861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 123931 + ... + 126721.

It is an arithmetic number, because the mean of its divisors is an integer number (33068448).

Almost surely, 2^349784866 is an apocalyptic number.

349784866 is a deficient number, since it is larger than the sum of its proper divisors (179310302).

349784866 is a wasteful number, since it uses less digits than its factorization.

349784866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297.

The product of its digits is 6967296, while the sum is 55.

The square root of 349784866 is about 18702.5363520566. The cubic root of 349784866 is about 704.5854518439.

The spelling of 349784866 in words is "three hundred forty-nine million, seven hundred eighty-four thousand, eight hundred sixty-six".