236404 has 12 divisors (see below), whose sum is σ = 472864. Its totient is φ = 101304.

The previous prime is 236399. The next prime is 236407. The reversal of 236404 is 404632.

236404 = T₂₉ + T₃₀ + ... + T₁₁₂.

236404 is nontrivially palindromic in base 15.

236404 is an admirable number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236407) 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, 4194 + ... + 4249.

2²³⁶⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

236404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

236404 is a wasteful number, since it uses less digits than its factorization.

236404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 236404 is about 486.2139446787. The cubic root of 236404 is about 61.8327089168.

The spelling of 236404 in words is "two hundred thirty-six thousand, four hundred four".