683040 has 48 divisors (see below), whose sum is σ = 2153088. Its totient is φ = 182016.

The previous prime is 683021. The next prime is 683041. The reversal of 683040 is 40386.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 682998 and 683016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683041) by changing a digit.

683040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232 + ... + 1191.

It is an arithmetic number, because the mean of its divisors is an integer number (44856).

2⁶⁸³⁰⁴⁰ is an apocalyptic number.

683040 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 683040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076544).

683040 is an abundant number, since it is smaller than the sum of its proper divisors (1470048).

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

683040 is a wasteful number, since it uses less digits than its factorization.

683040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 683040 is about 826.4623403398. The cubic root of 683040 is about 88.0674414140.

The spelling of 683040 in words is "six hundred eighty-three thousand, forty".