349918 has 4 divisors (see below), whose sum is σ = 524880. Its totient is φ = 174958.

The previous prime is 349913. The next prime is 349919. The reversal of 349918 is 819943.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349913) by changing a digit.

349918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87478 + ... + 87481.

It is an arithmetic number, because the mean of its divisors is an integer number (131220).

2³⁴⁹⁹¹⁸ is an apocalyptic number.

349918 is a deficient number, since it is larger than the sum of its proper divisors (174962).

349918 is a wasteful number, since it uses less digits than its factorization.

349918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174961.

The product of its digits is 7776, while the sum is 34.

The square root of 349918 is about 591.5386716014. The cubic root of 349918 is about 70.4674832861.

The spelling of 349918 in words is "three hundred forty-nine thousand, nine hundred eighteen".