1224730928 has 20 divisors (see below), whose sum is σ = 2405424168. Its totient is φ = 603976320.

The previous prime is 1224730891. The next prime is 1224730931. The reversal of 1224730928 is 8290374221.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1224730891 and 1224730900.

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 3 ways as a sum of consecutive naturals, for example, 523118 + ... + 525453.

Almost surely, 2^1224730928 is an apocalyptic number.

It is an amenable number.

1224730928 is a deficient number, since it is larger than the sum of its proper divisors (1180693240).

1224730928 is a wasteful number, since it uses less digits than its factorization.

1224730928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048652 (or 1048646 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1224730928 is about 34996.1559031846. The cubic root of 1224730928 is about 1069.9091336934.

The spelling of 1224730928 in words is "one billion, two hundred twenty-four million, seven hundred thirty thousand, nine hundred twenty-eight".