1227900800 has 288 divisors, whose sum is σ = 3633517440. Its totient is φ = 408576000.

The previous prime is 1227900797. The next prime is 1227900811. The reversal of 1227900800 is 80097221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6428705 + ... + 6428895.

It is an arithmetic number, because the mean of its divisors is an integer number (12616380).

Almost surely, 2^1227900800 is an apocalyptic number.

1227900800 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 1227900800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1816758720).

1227900800 is an abundant number, since it is smaller than the sum of its proper divisors (2405616640).

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

1227900800 is a wasteful number, since it uses less digits than its factorization.

1227900800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1227900800 is about 35041.4154965235. The cubic root of 1227900800 is about 1070.8313915728.

The spelling of 1227900800 in words is "one billion, two hundred twenty-seven million, nine hundred thousand, eight hundred".