349650805 has 16 divisors (see below), whose sum is σ = 488571264. Its totient is φ = 235235520.

The previous prime is 349650799. The next prime is 349650827. The reversal of 349650805 is 508056943.

It is not a de Polignac number, because 349650805 - 2⁷ = 349650677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92391 + ... + 96100.

It is an arithmetic number, because the mean of its divisors is an integer number (30535704).

Almost surely, 2^349650805 is an apocalyptic number.

349650805 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

349650805 is a deficient number, since it is larger than the sum of its proper divisors (138920459).

349650805 is a wasteful number, since it uses less digits than its factorization.

349650805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188556.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 349650805 is about 18698.9519759798. The cubic root of 349650805 is about 704.4954255549.

The spelling of 349650805 in words is "three hundred forty-nine million, six hundred fifty thousand, eight hundred five".