349018 has 8 divisors (see below), whose sum is σ = 528660. Its totient is φ = 172800.

The previous prime is 349007. The next prime is 349039. The reversal of 349018 is 810943.

It can be written as a sum of positive squares in 2 ways, for example, as 277729 + 71289 = 527^2 + 267^2 .

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

It is an Ulam number.

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

It is a junction number, because it is equal to n+sod(n) for n = 348983 and 349001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583 + ... + 1018.

2³⁴⁹⁰¹⁸ is an apocalyptic number.

349018 is a deficient number, since it is larger than the sum of its proper divisors (179642).

349018 is a wasteful number, since it uses less digits than its factorization.

349018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 349018 is about 590.7774538691. Note that the first 3 decimals coincide. The cubic root of 349018 is about 70.4070165613.

The spelling of 349018 in words is "three hundred forty-nine thousand, eighteen".