404033242 has 4 divisors (see below), whose sum is σ = 606049866. Its totient is φ = 202016620.

The previous prime is 404033171. The next prime is 404033263. The reversal of 404033242 is 242330404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 225570361 + 178462881 = 15019^2 + 13359^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 101008309 + ... + 101008312.

Almost surely, 2^404033242 is an apocalyptic number.

404033242 is a deficient number, since it is larger than the sum of its proper divisors (202016624).

404033242 is a wasteful number, since it uses less digits than its factorization.

404033242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202016623.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 404033242 is about 20100.5781508891. The cubic root of 404033242 is about 739.2744544300.

Adding to 404033242 its reverse (242330404), we get a palindrome (646363646).

The spelling of 404033242 in words is "four hundred four million, thirty-three thousand, two hundred forty-two".