346381 has 6 divisors (see below), whose sum is σ = 402990. Its totient is φ = 296856.

The previous prime is 346373. The next prime is 346391. The reversal of 346381 is 183643.

It can be written as a sum of positive squares in only one way, i.e., 275625 + 70756 = 525^2 + 266^2 .

It is not a de Polignac number, because 346381 - 2³ = 346373 is a prime.

It is a super-2 number, since 2×346381² = 239959594322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3486 + ... + 3583.

It is an arithmetic number, because the mean of its divisors is an integer number (67165).

2³⁴⁶³⁸¹ is an apocalyptic number.

It is an amenable number.

346381 is a deficient number, since it is larger than the sum of its proper divisors (56609).

346381 is an equidigital number, since it uses as much as digits as its factorization.

346381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083 (or 7076 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 346381 is about 588.5414174041. The cubic root of 346381 is about 70.2292483971.

It can be divided in two parts, 346 and 381, that added together give a palindrome (727).

The spelling of 346381 in words is "three hundred forty-six thousand, three hundred eighty-one".