234409 has 4 divisors (see below), whose sum is σ = 267904. Its totient is φ = 200916.

The previous prime is 234383. The next prime is 234431. The reversal of 234409 is 904432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234409 - 2⁷ = 234281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234409.

It is not an unprimeable number, because it can be changed into a prime (234499) 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, 16737 + ... + 16750.

It is an arithmetic number, because the mean of its divisors is an integer number (66976).

2²³⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

234409 is a deficient number, since it is larger than the sum of its proper divisors (33495).

234409 is an equidigital number, since it uses as much as digits as its factorization.

234409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33494.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 234409 is about 484.1580320515. The cubic root of 234409 is about 61.6582830905.

The spelling of 234409 in words is "two hundred thirty-four thousand, four hundred nine".