1185228000 has 576 divisors, whose sum is σ = 4765086144. Its totient is φ = 276480000.

The previous prime is 1185227969. The next prime is 1185228013. The reversal of 1185228000 is 8225811.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16235964 + ... + 16236036.

It is an arithmetic number, because the mean of its divisors is an integer number (8272719).

Almost surely, 2^1185228000 is an apocalyptic number.

1185228000 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 1185228000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382543072).

1185228000 is an abundant number, since it is smaller than the sum of its proper divisors (3579858144).

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

1185228000 is a wasteful number, since it uses less digits than its factorization.

1185228000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1185228000 is about 34427.1404563318. The cubic root of 1185228000 is about 1058.2801111282.

The spelling of 1185228000 in words is "one billion, one hundred eighty-five million, two hundred twenty-eight thousand".