1224661204 has 36 divisors (see below), whose sum is σ = 2333751420. Its totient is φ = 562049280.

The previous prime is 1224661157. The next prime is 1224661211. The reversal of 1224661204 is 4021664221.

It can be written as a sum of positive squares in 6 ways, for example, as 158508100 + 1066153104 = 12590^2 + 32652^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117352 + ... + 127360.

Almost surely, 2^1224661204 is an apocalyptic number.

It is an amenable number.

1224661204 is a deficient number, since it is larger than the sum of its proper divisors (1109090216).

1224661204 is a wasteful number, since it uses less digits than its factorization.

1224661204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220 (or 10205 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1224661204 is about 34995.1597224530. The cubic root of 1224661204 is about 1069.8888299792. Note that the first 4 decimals are identical.

The spelling of 1224661204 in words is "one billion, two hundred twenty-four million, six hundred sixty-one thousand, two hundred four".