404221324 has 12 divisors (see below), whose sum is σ = 761801824. Its totient is φ = 186563664.

The previous prime is 404221289. The next prime is 404221339. The reversal of 404221324 is 423122404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404221295 and 404221304.

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, 3886692 + ... + 3886795.

Almost surely, 2^404221324 is an apocalyptic number.

It is an amenable number.

404221324 is a deficient number, since it is larger than the sum of its proper divisors (357580500).

404221324 is a wasteful number, since it uses less digits than its factorization.

404221324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773504 (or 7773502 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 404221324 is about 20105.2561286844. The cubic root of 404221324 is about 739.3891501477.

Adding to 404221324 its reverse (423122404), we get a palindrome (827343728).

The spelling of 404221324 in words is "four hundred four million, two hundred twenty-one thousand, three hundred twenty-four".