234909 has 12 divisors (see below), whose sum is σ = 347776. Its totient is φ = 152712.

The previous prime is 234907. The next prime is 234917. The reversal of 234909 is 909432.

It is not a de Polignac number, because 234909 - 2¹ = 234907 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234907) 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 11 ways as a sum of consecutive naturals, for example, 84 + ... + 690.

2²³⁴⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

234909 is a deficient number, since it is larger than the sum of its proper divisors (112867).

234909 is a wasteful number, since it uses less digits than its factorization.

234909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 234909 is about 484.6741173201. The cubic root of 234909 is about 61.7020914877.

The spelling of 234909 in words is "two hundred thirty-four thousand, nine hundred nine".