404240133 has 32 divisors (see below), whose sum is σ = 612513792. Its totient is φ = 234964800.

The previous prime is 404240071. The next prime is 404240149. The reversal of 404240133 is 331042404.

It is not a de Polignac number, because 404240133 - 2¹⁷ = 404109061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404240173) 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 31 ways as a sum of consecutive naturals, for example, 84360 + ... + 89022.

It is an arithmetic number, because the mean of its divisors is an integer number (19141056).

Almost surely, 2^404240133 is an apocalyptic number.

It is an amenable number.

404240133 is a deficient number, since it is larger than the sum of its proper divisors (208273659).

404240133 is a wasteful number, since it uses less digits than its factorization.

404240133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404240133 is about 20105.7238864956. The cubic root of 404240133 is about 739.4006182502.

Adding to 404240133 its reverse (331042404), we get a palindrome (735282537).

The spelling of 404240133 in words is "four hundred four million, two hundred forty thousand, one hundred thirty-three".