349031 has 4 divisors (see below), whose sum is σ = 357192. Its totient is φ = 340872.

The previous prime is 349007. The next prime is 349039. The reversal of 349031 is 130943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130943 = 37 ⋅3539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349031 is a prime.

It is a super-2 number, since 2×349031² = 243645277922, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 349031 parts by 835 straight cuts.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 348994 and 349012.

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 349031.

It is not an unprimeable number, because it can be changed into a prime (349039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4016 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (89298).

2³⁴⁹⁰³¹ is an apocalyptic number.

349031 is a deficient number, since it is larger than the sum of its proper divisors (8161).

349031 is an equidigital number, since it uses as much as digits as its factorization.

349031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8160.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 349031 is about 590.7884562176. The cubic root of 349031 is about 70.4078907090.

Adding to 349031 its reverse (130943), we get a palindrome (479974).

The spelling of 349031 in words is "three hundred forty-nine thousand, thirty-one".