1228332560 has 120 divisors (see below), whose sum is σ = 3534505920. Its totient is φ = 388717056.

The previous prime is 1228332533. The next prime is 1228332563. The reversal of 1228332560 is 652338221.

It is not an unprimeable number, because it can be changed into a prime (1228332563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88151 + ... + 101129.

It is an arithmetic number, because the mean of its divisors is an integer number (29454216).

Almost surely, 2^1228332560 is an apocalyptic number.

1228332560 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 1228332560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767252960).

1228332560 is an abundant number, since it is smaller than the sum of its proper divisors (2306173360).

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

1228332560 is a wasteful number, since it uses less digits than its factorization.

1228332560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13025 (or 13006 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1228332560 is about 35047.5756650870. The cubic root of 1228332560 is about 1070.9568870476.

The spelling of 1228332560 in words is "one billion, two hundred twenty-eight million, three hundred thirty-two thousand, five hundred sixty".