1224828018 has 54 divisors (see below), whose sum is σ = 2714667111. Its totient is φ = 399119616.

The previous prime is 1224828013. The next prime is 1224828049. The reversal of 1224828018 is 8108284221.

It can be written as a sum of positive squares in 5 ways, for example, as 48818169 + 1176009849 = 6987^2 + 34293^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24747.

It is not an unprimeable number, because it can be changed into a prime (1224828013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10839130 + ... + 10839242.

Almost surely, 2^1224828018 is an apocalyptic number.

1224828018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1224828018 is an abundant number, since it is smaller than the sum of its proper divisors (1489839093).

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

1224828018 is an equidigital number, since it uses as much as digits as its factorization.

1224828018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 1224828018 is about 34997.5430280470. The cubic root of 1224828018 is about 1069.9374051367.

The spelling of 1224828018 in words is "one billion, two hundred twenty-four million, eight hundred twenty-eight thousand, eighteen".