409235 has 4 divisors (see below), whose sum is σ = 491088. Its totient is φ = 327384.

The previous prime is 409217. The next prime is 409237. The reversal of 409235 is 532904.

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 409235 - 2⁸ = 408979 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 409235.

It is not an unprimeable number, because it can be changed into a prime (409237) 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, 40919 + ... + 40928.

It is an arithmetic number, because the mean of its divisors is an integer number (122772).

2⁴⁰⁹²³⁵ is an apocalyptic number.

409235 is a deficient number, since it is larger than the sum of its proper divisors (81853).

409235 is an equidigital number, since it uses as much as digits as its factorization.

409235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81852.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 409235 is about 639.7147801950. The cubic root of 409235 is about 74.2433551476.

The spelling of 409235 in words is "four hundred nine thousand, two hundred thirty-five".