404133231 has 8 divisors (see below), whose sum is σ = 570541104. Its totient is φ = 253573760.

The previous prime is 404133209. The next prime is 404133259. The reversal of 404133231 is 132331404.

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

It is a cyclic number.

It is not a de Polignac number, because 404133231 - 2⁵ = 404133199 is a prime.

It is a super-2 number, since 2×404133231² = 326647336796998722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404133198 and 404133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404133281) 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, 3962040 + ... + 3962141.

It is an arithmetic number, because the mean of its divisors is an integer number (71317638).

Almost surely, 2^404133231 is an apocalyptic number.

404133231 is a deficient number, since it is larger than the sum of its proper divisors (166407873).

404133231 is a wasteful number, since it uses less digits than its factorization.

404133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7924201.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 404133231 is about 20103.0652140414. The cubic root of 404133231 is about 739.3354339145.

Adding to 404133231 its reverse (132331404), we get a palindrome (536464635).

The spelling of 404133231 in words is "four hundred four million, one hundred thirty-three thousand, two hundred thirty-one".