404316242 has 16 divisors (see below), whose sum is σ = 679491072. Its totient is φ = 178812720.

The previous prime is 404316239. The next prime is 404316259. The reversal of 404316242 is 242613404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247538 + ... + 249165.

It is an arithmetic number, because the mean of its divisors is an integer number (42468192).

Almost surely, 2^404316242 is an apocalyptic number.

404316242 is a deficient number, since it is larger than the sum of its proper divisors (275174830).

404316242 is a wasteful number, since it uses less digits than its factorization.

404316242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496753.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 404316242 is about 20107.6165171310. The cubic root of 404316242 is about 739.4470193088.

Adding to 404316242 its reverse (242613404), we get a palindrome (646929646).

The spelling of 404316242 in words is "four hundred four million, three hundred sixteen thousand, two hundred forty-two".