233404 has 24 divisors (see below), whose sum is σ = 443520. Its totient is φ = 107184.

The previous prime is 233371. The next prime is 233407. The reversal of 233404 is 404332.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁷ + 3⁶ + 4⁷ + 3⁹ + 0 + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233407) by changing a digit.

233404 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 7 ways as a sum of consecutive naturals, for example, 3927 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (18480).

2²³³⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

233404 is a deficient number, since it is larger than the sum of its proper divisors (210116).

233404 is a wasteful number, since it uses less digits than its factorization.

233404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 233404 is about 483.1190329515. The cubic root of 233404 is about 61.5700394023.

Adding to 233404 its reverse (404332), we get a palindrome (637736).

The spelling of 233404 in words is "two hundred thirty-three thousand, four hundred four".