1227790080 has 216 divisors, whose sum is σ = 4634688240. Its totient is φ = 297615360.

The previous prime is 1227790073. The next prime is 1227790097. The reversal of 1227790080 is 800977221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121876 + ... + 131564.

It is an arithmetic number, because the mean of its divisors is an integer number (21456890).

Almost surely, 2^1227790080 is an apocalyptic number.

1227790080 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 1227790080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2317344120).

1227790080 is an abundant number, since it is smaller than the sum of its proper divisors (3406898160).

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

1227790080 is a wasteful number, since it uses less digits than its factorization.

1227790080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9727 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1227790080 is about 35039.8356160528. The cubic root of 1227790080 is about 1070.7992049294.

The spelling of 1227790080 in words is "one billion, two hundred twenty-seven million, seven hundred ninety thousand, eighty".