349205684 has 12 divisors (see below), whose sum is σ = 614770464. Its totient is φ = 173556984.

The previous prime is 349205627. The next prime is 349205729. The reversal of 349205684 is 486502943.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 260714 + ... + 262049.

It is an arithmetic number, because the mean of its divisors is an integer number (51230872).

Almost surely, 2^349205684 is an apocalyptic number.

It is an amenable number.

349205684 is a deficient number, since it is larger than the sum of its proper divisors (265564780).

349205684 is a wasteful number, since it uses less digits than its factorization.

349205684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522934 (or 522932 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 349205684 is about 18687.0458874590. The cubic root of 349205684 is about 704.1963472864.

It can be divided in two parts, 34920 and 5684, that added together give a palindrome (40604).

The spelling of 349205684 in words is "three hundred forty-nine million, two hundred five thousand, six hundred eighty-four".