1229132800 has 264 divisors, whose sum is σ = 3675429440. Its totient is φ = 399237120.

The previous prime is 1229132791. The next prime is 1229132813. The reversal of 1229132800 is 82319221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64691191 + ... + 64691209.

Almost surely, 2^1229132800 is an apocalyptic number.

1229132800 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 1229132800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1837714720).

1229132800 is an abundant number, since it is smaller than the sum of its proper divisors (2446296640).

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

1229132800 is an frugal number, since it uses more digits than its factorization.

1229132800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1229132800 is about 35058.9902877992. The cubic root of 1229132800 is about 1071.1894072739.

The spelling of 1229132800 in words is "one billion, two hundred twenty-nine million, one hundred thirty-two thousand, eight hundred".