1228124808 has 32 divisors (see below), whose sum is σ = 3411458400. Its totient is φ = 409374864.

The previous prime is 1228124803. The next prime is 1228124809. The reversal of 1228124808 is 8084218221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1228124801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2842666 + ... + 2843097.

It is an arithmetic number, because the mean of its divisors is an integer number (106608075).

Almost surely, 2^1228124808 is an apocalyptic number.

1228124808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1228124808 is an abundant number, since it is smaller than the sum of its proper divisors (2183333592).

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

1228124808 is a wasteful number, since it uses less digits than its factorization.

1228124808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685778 (or 5685768 counting only the distinct ones).

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

The square root of 1228124808 is about 35044.6116828251. The cubic root of 1228124808 is about 1070.8965054682.

The spelling of 1228124808 in words is "one billion, two hundred twenty-eight million, one hundred twenty-four thousand, eight hundred eight".