349085810 has 8 divisors (see below), whose sum is σ = 628354476. Its totient is φ = 139634320.

The previous prime is 349085809. The next prime is 349085813. The reversal of 349085810 is 18580943.

It can be written as a sum of positive squares in 2 ways, for example, as 340365601 + 8720209 = 18449^2 + 2953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×349085810² = 243721805486712200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 17454281 + ... + 17454300.

Almost surely, 2^349085810 is an apocalyptic number.

349085810 is a deficient number, since it is larger than the sum of its proper divisors (279268666).

349085810 is a wasteful number, since it uses less digits than its factorization.

349085810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34908588.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 349085810 is about 18683.8382031102. The cubic root of 349085810 is about 704.1157601159.

The spelling of 349085810 in words is "three hundred forty-nine million, eighty-five thousand, eight hundred ten".