349457 has 4 divisors (see below), whose sum is σ = 355440. Its totient is φ = 343476.

The previous prime is 349423. The next prime is 349471. The reversal of 349457 is 754943.

349457 = T₇₈ + T₇₉ + ... + T₁₃₆.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 349457 - 2¹⁰ = 348433 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 349457.

It is not an unprimeable number, because it can be changed into a prime (349477) 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, 2903 + ... + 3020.

It is an arithmetic number, because the mean of its divisors is an integer number (88860).

2³⁴⁹⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

349457 is a deficient number, since it is larger than the sum of its proper divisors (5983).

349457 is an equidigital number, since it uses as much as digits as its factorization.

349457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982.

The product of its digits is 15120, while the sum is 32.

The square root of 349457 is about 591.1488814165. The cubic root of 349457 is about 70.4365238553.

The spelling of 349457 in words is "three hundred forty-nine thousand, four hundred fifty-seven".