349231 has 4 divisors (see below), whose sum is σ = 369792. Its totient is φ = 328672.

The previous prime is 349211. The next prime is 349241. The reversal of 349231 is 132943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132943 = 19 ⋅6997.

It is a cyclic number.

It is not a de Polignac number, because 349231 - 2⁵ = 349199 is a prime.

It is a super-2 number, since 2×349231² = 243924582722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10255 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (92448).

2³⁴⁹²³¹ is an apocalyptic number.

349231 is a deficient number, since it is larger than the sum of its proper divisors (20561).

349231 is a wasteful number, since it uses less digits than its factorization.

349231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20560.

The product of its digits is 648, while the sum is 22.

The square root of 349231 is about 590.9576973016. The cubic root of 349231 is about 70.4213364004.

The spelling of 349231 in words is "three hundred forty-nine thousand, two hundred thirty-one".