235720 has 32 divisors (see below), whose sum is σ = 544320. Its totient is φ = 91840.

The previous prime is 235699. The next prime is 235723. The reversal of 235720 is 27532.

It is a happy number.

235720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (235723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2799 + ... + 2881.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2²³⁵⁷²⁰ is an apocalyptic number.

235720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272160).

235720 is an abundant number, since it is smaller than the sum of its proper divisors (308600).

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

235720 is a wasteful number, since it uses less digits than its factorization.

235720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 235720 is about 485.5100410908. The cubic root of 235720 is about 61.7730167110.

The spelling of 235720 in words is "two hundred thirty-five thousand, seven hundred twenty".