405235 has 4 divisors (see below), whose sum is σ = 486288. Its totient is φ = 324184.

The previous prime is 405227. The next prime is 405239. The reversal of 405235 is 532504.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 405235 - 2³ = 405227 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (405239) 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, 40519 + ... + 40528.

It is an arithmetic number, because the mean of its divisors is an integer number (121572).

2⁴⁰⁵²³⁵ is an apocalyptic number.

405235 is a deficient number, since it is larger than the sum of its proper divisors (81053).

405235 is an equidigital number, since it uses as much as digits as its factorization.

405235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81052.

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

The square root of 405235 is about 636.5807097297. The cubic root of 405235 is about 74.0006695824. Note that the first 3 decimals are identical.

Adding to 405235 its reverse (532504), we get a palindrome (937739).

The spelling of 405235 in words is "four hundred five thousand, two hundred thirty-five".