235742 has 8 divisors (see below), whose sum is σ = 380856. Its totient is φ = 108792.

The previous prime is 235723. The next prime is 235747. The reversal of 235742 is 247532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235747) 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 3 ways as a sum of consecutive naturals, for example, 4508 + ... + 4559.

It is an arithmetic number, because the mean of its divisors is an integer number (47607).

2²³⁵⁷⁴² is an apocalyptic number.

235742 is a deficient number, since it is larger than the sum of its proper divisors (145114).

235742 is a wasteful number, since it uses less digits than its factorization.

235742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082.

The product of its digits is 1680, while the sum is 23.

The square root of 235742 is about 485.5326971482. The cubic root of 235742 is about 61.7749384318.

The spelling of 235742 in words is "two hundred thirty-five thousand, seven hundred forty-two".