1228798080 has 512 divisors, whose sum is σ = 4758912000. Its totient is φ = 298450944.

The previous prime is 1228798079. The next prime is 1228798141. The reversal of 1228798080 is 808978221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13806676 + ... + 13806764.

It is an arithmetic number, because the mean of its divisors is an integer number (9294750).

Almost surely, 2^1228798080 is an apocalyptic number.

1228798080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228798080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379456000).

1228798080 is an abundant number, since it is smaller than the sum of its proper divisors (3530113920).

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

1228798080 is a wasteful number, since it uses less digits than its factorization.

1228798080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 1228798080 is about 35054.2162941921. The cubic root of 1228798080 is about 1071.0921622704.

The spelling of 1228798080 in words is "one billion, two hundred twenty-eight million, seven hundred ninety-eight thousand, eighty".