1227983880 has 32 divisors (see below), whose sum is σ = 3683952000. Its totient is φ = 327462336.

The previous prime is 1227983857. The next prime is 1227983893. The reversal of 1227983880 is 883897221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5116480 + ... + 5116719.

It is an arithmetic number, because the mean of its divisors is an integer number (115123500).

Almost surely, 2^1227983880 is an apocalyptic number.

1227983880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1227983880 is an abundant number, since it is smaller than the sum of its proper divisors (2455968120).

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

1227983880 is a wasteful number, since it uses less digits than its factorization.

1227983880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10233213 (or 10233209 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1227983880 is about 35042.6009308670. The cubic root of 1227983880 is about 1070.8555419128.

The spelling of 1227983880 in words is "one billion, two hundred twenty-seven million, nine hundred eighty-three thousand, eight hundred eighty".