683440992 has 144 divisors (see below), whose sum is σ = 2103781680. Its totient is φ = 209212416.

The previous prime is 683440969. The next prime is 683440997. The reversal of 683440992 is 299044386.

683440992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683440997) 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, 1036759 + ... + 1037417.

It is an arithmetic number, because the mean of its divisors is an integer number (14609595).

Almost surely, 2^683440992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683440992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051890840).

683440992 is an abundant number, since it is smaller than the sum of its proper divisors (1420340688).

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

683440992 is a wasteful number, since it uses less digits than its factorization.

683440992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 683440992 is about 26142.7043742609. The cubic root of 683440992 is about 880.8467194764.

The spelling of 683440992 in words is "six hundred eighty-three million, four hundred forty thousand, nine hundred ninety-two".