349085812 has 24 divisors (see below), whose sum is σ = 646986816. Its totient is φ = 164459328.

The previous prime is 349085809. The next prime is 349085813. The reversal of 349085812 is 218580943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349085813) 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, 22153 + ... + 34480.

It is an arithmetic number, because the mean of its divisors is an integer number (26957784).

Almost surely, 2^349085812 is an apocalyptic number.

It is an amenable number.

349085812 is a deficient number, since it is larger than the sum of its proper divisors (297901004).

349085812 is a wasteful number, since it uses less digits than its factorization.

349085812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56727 (or 56725 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 349085812 is about 18683.8382566324. The cubic root of 349085812 is about 704.1157614606.

The spelling of 349085812 in words is "three hundred forty-nine million, eighty-five thousand, eight hundred twelve".