681433800 has 96 divisors (see below), whose sum is σ = 2117275200. Its totient is φ = 181300480.

The previous prime is 681433783. The next prime is 681433801. The reversal of 681433800 is 8334186.

681433800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (681433801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333181 + ... + 335219.

It is an arithmetic number, because the mean of its divisors is an integer number (22054950).

Almost surely, 2^681433800 is an apocalyptic number.

681433800 is a gapful number since it is divisible by the number (60) 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 681433800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058637600).

681433800 is an abundant number, since it is smaller than the sum of its proper divisors (1435841400).

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

681433800 is a wasteful number, since it uses less digits than its factorization.

681433800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 681433800 is about 26104.2870042451. The cubic root of 681433800 is about 879.9835568553.

Adding to 681433800 its reverse (8334186), we get a palindrome (689767986).

The spelling of 681433800 in words is "six hundred eighty-one million, four hundred thirty-three thousand, eight hundred".