349421 has 4 divisors (see below), whose sum is σ = 361500. Its totient is φ = 337344.

The previous prime is 349411. The next prime is 349423. The reversal of 349421 is 124943.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 212521 + 136900 = 461^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 349421 - 2⁶ = 349357 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 4⁸ + 4⁹ + 9 + 2¹¹ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349423) 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, 5996 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (90375).

2³⁴⁹⁴²¹ is an apocalyptic number.

It is an amenable number.

349421 is a deficient number, since it is larger than the sum of its proper divisors (12079).

349421 is a wasteful number, since it uses less digits than its factorization.

349421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12078.

The product of its digits is 864, while the sum is 23.

The square root of 349421 is about 591.1184314501. The cubic root of 349421 is about 70.4341050532.

It can be divided in two parts, 34942 and 1, that added together give a palindrome (34943).

The spelling of 349421 in words is "three hundred forty-nine thousand, four hundred twenty-one".