349278 has 16 divisors (see below), whose sum is σ = 729216. Its totient is φ = 111320.

The previous prime is 349241. The next prime is 349291. The reversal of 349278 is 872943.

It is an alternating number because its digits alternate between odd and even.

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 7 ways as a sum of consecutive naturals, for example, 1128 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (45576).

2³⁴⁹²⁷⁸ is an apocalyptic number.

349278 is an abundant number, since it is smaller than the sum of its proper divisors (379938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349278 is a wasteful number, since it uses less digits than its factorization.

349278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559.

The product of its digits is 12096, while the sum is 33.

The square root of 349278 is about 590.9974619235. The cubic root of 349278 is about 70.4244953930.

Adding to 349278 its reverse (872943), we get a palindrome (1222221).

It can be divided in two parts, 3492 and 78, that added together give a triangular number (3570 = T₈₄).

The spelling of 349278 in words is "three hundred forty-nine thousand, two hundred seventy-eight".