352405 has 4 divisors (see below), whose sum is σ = 422892. Its totient is φ = 281920.

The previous prime is 352403. The next prime is 352409. The reversal of 352405 is 504253.

It is a happy number.

352405 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504253 = 293 ⋅1721.

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 88209 = 514^2 + 297^2 .

It is not a de Polignac number, because 352405 - 2¹ = 352403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352403) 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, 35236 + ... + 35245.

It is an arithmetic number, because the mean of its divisors is an integer number (105723).

2³⁵²⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

352405 is a deficient number, since it is larger than the sum of its proper divisors (70487).

352405 is an equidigital number, since it uses as much as digits as its factorization.

352405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70486.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 352405 is about 593.6370945283. The cubic root of 352405 is about 70.6340357040.

Adding to 352405 its reverse (504253), we get a palindrome (856658).

It can be divided in two parts, 35240 and 5, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 352405 in words is "three hundred fifty-two thousand, four hundred five".