1228808120 has 32 divisors (see below), whose sum is σ = 2885029920. Its totient is φ = 470152320.

The previous prime is 1228808047. The next prime is 1228808123. The reversal of 1228808120 is 218088221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228808123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 666911 + ... + 668750.

It is an arithmetic number, because the mean of its divisors is an integer number (90157185).

Almost surely, 2^1228808120 is an apocalyptic number.

1228808120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1228808120 is an abundant number, since it is smaller than the sum of its proper divisors (1656221800).

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

1228808120 is a wasteful number, since it uses less digits than its factorization.

1228808120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335695 (or 1335691 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 1228808120 is about 35054.3595006384. The cubic root of 1228808120 is about 1071.0950794125.

The spelling of 1228808120 in words is "one billion, two hundred twenty-eight million, eight hundred eight thousand, one hundred twenty".