404140133 has 8 divisors (see below), whose sum is σ = 428130648. Its totient is φ = 380173824.

The previous prime is 404140123. The next prime is 404140171. The reversal of 404140133 is 331041404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 297286564 + 106853569 = 17242^2 + 10337^2 .

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 404140133 - 2⁶ = 404140069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404140123) 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, 37235 + ... + 46847.

It is an arithmetic number, because the mean of its divisors is an integer number (53516331).

Almost surely, 2^404140133 is an apocalyptic number.

It is an amenable number.

404140133 is a deficient number, since it is larger than the sum of its proper divisors (23990515).

404140133 is a wasteful number, since it uses less digits than its factorization.

404140133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 404140133 is about 20103.2368786721. The cubic root of 404140133 is about 739.3396428104.

Adding to 404140133 its reverse (331041404), we get a palindrome (735181537).

The spelling of 404140133 in words is "four hundred four million, one hundred forty thousand, one hundred thirty-three".