683290240 has 64 divisors (see below), whose sum is σ = 1645625160. Its totient is φ = 271286272.

The previous prime is 683290229. The next prime is 683290241. The reversal of 683290240 is 42092386.

It can be written as a sum of positive squares in 4 ways, for example, as 675584064 + 7706176 = 25992^2 + 2776^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 683290196 and 683290205.

It is not an unprimeable number, because it can be changed into a prime (683290241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83784 + ... + 91576.

Almost surely, 2^683290240 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 683290240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822812580).

683290240 is an abundant number, since it is smaller than the sum of its proper divisors (962334920).

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

683290240 is a wasteful number, since it uses less digits than its factorization.

683290240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7949 (or 7937 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 683290240 is about 26139.8209634267. The cubic root of 683290240 is about 880.7819495982.

The spelling of 683290240 in words is "six hundred eighty-three million, two hundred ninety thousand, two hundred forty".