1227227760 has 280 divisors, whose sum is σ = 4669348464. Its totient is φ = 297354240.

The previous prime is 1227227753. The next prime is 1227227761. The reversal of 1227227760 is 677227221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227227761) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 640564 + ... + 642476.

Almost surely, 2^1227227760 is an apocalyptic number.

1227227760 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 1227227760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2334674232).

1227227760 is an abundant number, since it is smaller than the sum of its proper divisors (3442120704).

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

1227227760 is a wasteful number, since it uses less digits than its factorization.

1227227760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 1227227760 is about 35031.8106868600. The cubic root of 1227227760 is about 1070.6357069052.

The spelling of 1227227760 in words is "one billion, two hundred twenty-seven million, two hundred twenty-seven thousand, seven hundred sixty".