404224242 has 8 divisors (see below), whose sum is σ = 808448496. Its totient is φ = 134741412.

The previous prime is 404224237. The next prime is 404224253. The reversal of 404224242 is 242422404.

It is a sphenic number, since it is the product of 3 distinct primes.

404224242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33685348 + ... + 33685359.

It is an arithmetic number, because the mean of its divisors is an integer number (101056062).

Almost surely, 2^404224242 is an apocalyptic number.

404224242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404224242 is a wasteful number, since it uses less digits than its factorization.

404224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67370712.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 404224242 is about 20105.3286966416. The cubic root of 404224242 is about 739.3909293152.

Adding to 404224242 its reverse (242422404), we get a palindrome (646646646).

The spelling of 404224242 in words is "four hundred four million, two hundred twenty-four thousand, two hundred forty-two".