404133530 has 16 divisors (see below), whose sum is σ = 728014824. Its totient is φ = 161525760.

The previous prime is 404133517. The next prime is 404133551. The reversal of 404133530 is 35331404.

It can be written as a sum of positive squares in 4 ways, for example, as 398521369 + 5612161 = 19963^2 + 2369^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404133496 and 404133505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087 + ... + 28506.

Almost surely, 2^404133530 is an apocalyptic number.

404133530 is a deficient number, since it is larger than the sum of its proper divisors (323881294).

404133530 is a wasteful number, since it uses less digits than its factorization.

404133530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31921.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 404133530 is about 20103.0726507169. The cubic root of 404133530 is about 739.3356162481.

Adding to 404133530 its reverse (35331404), we get a palindrome (439464934).

The spelling of 404133530 in words is "four hundred four million, one hundred thirty-three thousand, five hundred thirty".