855630000 has 200 divisors, whose sum is σ = 3069954800. Its totient is φ = 228096000.

The previous prime is 855629987. The next prime is 855630001. The reversal of 855630000 is 36558.

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 (27).

It is not an unprimeable number, because it can be changed into a prime (855630001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 268416 + ... + 271584.

It is an arithmetic number, because the mean of its divisors is an integer number (15349774).

Almost surely, 2^855630000 is an apocalyptic number.

855630000 is a gapful number since it is divisible by the number (80) 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 855630000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534977400).

855630000 is an abundant number, since it is smaller than the sum of its proper divisors (2214324800).

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

855630000 is a wasteful number, since it uses less digits than its factorization.

855630000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206 (or 3179 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 855630000 is about 29251.1538233964. The cubic root of 855630000 is about 949.3550562526.

Adding to 855630000 its reverse (36558), we get a palindrome (855666558).

The spelling of 855630000 in words is "eight hundred fifty-five million, six hundred thirty thousand".