1228147200 has 360 divisors, whose sum is σ = 5026383648. Its totient is φ = 280535040.

The previous prime is 1228147183. The next prime is 1228147229. The reversal of 1228147200 is 27418221.

It is a tau number, because it is divible by the number of its divisors (360).

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, 805639 + ... + 807161.

Almost surely, 2^1228147200 is an apocalyptic number.

1228147200 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 1228147200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513191824).

1228147200 is an abundant number, since it is smaller than the sum of its proper divisors (3798236448).

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

1228147200 is a wasteful number, since it uses less digits than its factorization.

1228147200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1228147200 is about 35044.9311598696. The cubic root of 1228147200 is about 1070.9030138645.

The spelling of 1228147200 in words is "one billion, two hundred twenty-eight million, one hundred forty-seven thousand, two hundred".