235404 has 36 divisors (see below), whose sum is σ = 642096. Its totient is φ = 72288.

The previous prime is 235397. The next prime is 235439. The reversal of 235404 is 404532.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (17836).

2²³⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321048).

235404 is an abundant number, since it is smaller than the sum of its proper divisors (406692).

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

235404 is a wasteful number, since it uses less digits than its factorization.

235404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 235404 is about 485.1845009891. The cubic root of 235404 is about 61.7454006092.

Adding to 235404 its reverse (404532), we get a palindrome (639936).

The spelling of 235404 in words is "two hundred thirty-five thousand, four hundred four".