235830 has 32 divisors (see below), whose sum is σ = 647424. Its totient is φ = 53856.

The previous prime is 235813. The next prime is 235849. The reversal of 235830 is 38532.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 235797 and 235806.

It is a congruent number.

It is an unprimeable number.

235830 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (20232).

2²³⁵⁸³⁰ is an apocalyptic number.

235830 is an abundant number, since it is smaller than the sum of its proper divisors (411594).

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

235830 is a wasteful number, since it uses less digits than its factorization.

235830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 235830 is about 485.6233108079. The cubic root of 235830 is about 61.7826241197.

The spelling of 235830 in words is "two hundred thirty-five thousand, eight hundred thirty".