1200430000 has 200 divisors, whose sum is σ = 3625839360. Its totient is φ = 373920000.

The previous prime is 1200429983. The next prime is 1200430009. The reversal of 1200430000 is 340021.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1200430009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 769221 + ... + 770779.

Almost surely, 2^1200430000 is an apocalyptic number.

1200430000 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 1200430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812919680).

1200430000 is an abundant number, since it is smaller than the sum of its proper divisors (2425409360).

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

1200430000 is a wasteful number, since it uses less digits than its factorization.

1200430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1200430000 is about 34647.2221108706. Note that the first 3 decimals coincide. The cubic root of 1200430000 is about 1062.7854826871.

Adding to 1200430000 its reverse (340021), we get a palindrome (1200770021).

The spelling of 1200430000 in words is "one billion, two hundred million, four hundred thirty thousand".