235668 has 24 divisors (see below), whose sum is σ = 564480. Its totient is φ = 76480.

The previous prime is 235663. The next prime is 235673. The reversal of 235668 is 866532.

It is an interprime number because it is at equal distance from previous prime (235663) and next prime (235673).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2¹³ + 3¹¹ + 6² + 5⁵ + 6⁶ + 8³ .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235661) 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, 253 + ... + 731.

It is an arithmetic number, because the mean of its divisors is an integer number (23520).

2²³⁵⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

235668 is an abundant number, since it is smaller than the sum of its proper divisors (328812).

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

235668 is a wasteful number, since it uses less digits than its factorization.

235668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 525 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 235668 is about 485.4564862065. The cubic root of 235668 is about 61.7684739865.

It can be divided in two parts, 235 and 668, that added together give a triangular number (903 = T₄₂).

The spelling of 235668 in words is "two hundred thirty-five thousand, six hundred sixty-eight".