349680365 has 16 divisors (see below), whose sum is σ = 430674816. Its totient is φ = 272462400.

The previous prime is 349680337. The next prime is 349680371. The reversal of 349680365 is 563086943.

It is not a de Polignac number, because 349680365 - 2¹² = 349676269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25850 + ... + 36980.

It is an arithmetic number, because the mean of its divisors is an integer number (26917176).

Almost surely, 2^349680365 is an apocalyptic number.

It is an amenable number.

349680365 is a deficient number, since it is larger than the sum of its proper divisors (80994451).

349680365 is a wasteful number, since it uses less digits than its factorization.

349680365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11300.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 349680365 is about 18699.7423779046. The cubic root of 349680365 is about 704.5152780264.

The spelling of 349680365 in words is "three hundred forty-nine million, six hundred eighty thousand, three hundred sixty-five".