349406 has 4 divisors (see below), whose sum is σ = 524112. Its totient is φ = 174702.

The previous prime is 349403. The next prime is 349409. The reversal of 349406 is 604943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604943 = 67 ⋅9029.

It is an interprime number because it is at equal distance from previous prime (349403) and next prime (349409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349403) 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 as a sum of consecutive naturals, namely, 87350 + ... + 87353.

It is an arithmetic number, because the mean of its divisors is an integer number (131028).

2³⁴⁹⁴⁰⁶ is an apocalyptic number.

349406 is a deficient number, since it is larger than the sum of its proper divisors (174706).

349406 is a wasteful number, since it uses less digits than its factorization.

349406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174705.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 349406 is about 591.1057435011. The cubic root of 349406 is about 70.4330971700.

The spelling of 349406 in words is "three hundred forty-nine thousand, four hundred six".