235904 has 32 divisors (see below), whose sum is σ = 499800. Its totient is φ = 110592.

The previous prime is 235901. The next prime is 235919. The reversal of 235904 is 409532.

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 235904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384 + ... + 2480.

2²³⁵⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249900).

235904 is an abundant number, since it is smaller than the sum of its proper divisors (263896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

235904 is an equidigital number, since it uses as much as digits as its factorization.

235904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 118 counting only the distinct ones).

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

The square root of 235904 is about 485.6994955731. The cubic root of 235904 is about 61.7890856048.

The spelling of 235904 in words is "two hundred thirty-five thousand, nine hundred four".