349845 has 16 divisors (see below), whose sum is σ = 568512. Its totient is φ = 183680.

The previous prime is 349841. The next prime is 349849. The reversal of 349845 is 548943.

It is an interprime number because it is at equal distance from previous prime (349841) and next prime (349849).

It is not a de Polignac number, because 349845 - 2² = 349841 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 349845.

It is not an unprimeable number, because it can be changed into a prime (349841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105 + ... + 1385.

It is an arithmetic number, because the mean of its divisors is an integer number (35532).

2³⁴⁹⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

349845 is a deficient number, since it is larger than the sum of its proper divisors (218667).

349845 is a wasteful number, since it uses less digits than its factorization.

349845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 17280, while the sum is 33.

The square root of 349845 is about 591.4769648938. The cubic root of 349845 is about 70.4625826293.

The spelling of 349845 in words is "three hundred forty-nine thousand, eight hundred forty-five".