1227376800 has 720 divisors, whose sum is σ = 5081674752. Its totient is φ = 286156800.

The previous prime is 1227376781. The next prime is 1227376867. The reversal of 1227376800 is 86737221.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 26114377 + ... + 26114423.

Almost surely, 2^1227376800 is an apocalyptic number.

1227376800 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 1227376800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2540837376).

1227376800 is an abundant number, since it is smaller than the sum of its proper divisors (3854297952).

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

1227376800 is a wasteful number, since it uses less digits than its factorization.

1227376800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 1227376800 is about 35033.9378317654. The cubic root of 1227376800 is about 1070.6790460723.

The spelling of 1227376800 in words is "one billion, two hundred twenty-seven million, three hundred seventy-six thousand, eight hundred".