682849640 has 64 divisors (see below), whose sum is σ = 1686303360. Its totient is φ = 246795520.

The previous prime is 682849637. The next prime is 682849669. The reversal of 682849640 is 46948286.

682849640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68834 + ... + 78126.

It is an arithmetic number, because the mean of its divisors is an integer number (26348490).

Almost surely, 2^682849640 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 682849640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843151680).

682849640 is an abundant number, since it is smaller than the sum of its proper divisors (1003453720).

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

682849640 is a wasteful number, since it uses less digits than its factorization.

682849640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9482 (or 9478 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The square root of 682849640 is about 26131.3918496509. The cubic root of 682849640 is about 880.5925932815.

The spelling of 682849640 in words is "six hundred eighty-two million, eight hundred forty-nine thousand, six hundred forty".