1224442404 has 18 divisors (see below), whose sum is σ = 3095118390. Its totient is φ = 408147456.

The previous prime is 1224442397. The next prime is 1224442469. The reversal of 1224442404 is 4042444221.

1224442404 is a `hidden beast` number, since 12 + 244 + 4 + 2 + 404 = 666.

It can be written as a sum of positive squares in only one way, i.e., 861539904 + 362902500 = 29352^2 + 19050^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 17006109 + ... + 17006180.

Almost surely, 2^1224442404 is an apocalyptic number.

It is an amenable number.

1224442404 is an abundant number, since it is smaller than the sum of its proper divisors (1870675986).

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

1224442404 is a wasteful number, since it uses less digits than its factorization.

1224442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34012299 (or 34012294 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 1224442404 is about 34992.0334361980. The cubic root of 1224442404 is about 1069.8251101473.

Adding to 1224442404 its reverse (4042444221), we get a palindrome (5266886625).

The spelling of 1224442404 in words is "one billion, two hundred twenty-four million, four hundred forty-two thousand, four hundred four".