235998 has 24 divisors (see below), whose sum is σ = 584688. Its totient is φ = 67392.

The previous prime is 235997. The next prime is 236017. The reversal of 235998 is 899532.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 235998.

It is not an unprimeable number, because it can be changed into a prime (235997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 811 + ... + 1062.

It is an arithmetic number, because the mean of its divisors is an integer number (24362).

2²³⁵⁹⁹⁸ is an apocalyptic number.

235998 is an abundant number, since it is smaller than the sum of its proper divisors (348690).

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

235998 is a wasteful number, since it uses less digits than its factorization.

235998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888 (or 1885 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 235998 is about 485.7962535879. The cubic root of 235998 is about 61.7972914891.

The spelling of 235998 in words is "two hundred thirty-five thousand, nine hundred ninety-eight".