682145540 has 24 divisors (see below), whose sum is σ = 1481903640. Its totient is φ = 263449088.

The previous prime is 682145539. The next prime is 682145603. The reversal of 682145540 is 45541286.

It can be written as a sum of positive squares in 4 ways, for example, as 14853316 + 667292224 = 3854^2 + 25832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 682145540.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587477 + ... + 588636.

It is an arithmetic number, because the mean of its divisors is an integer number (61745985).

Almost surely, 2^682145540 is an apocalyptic number.

It is an amenable number.

682145540 is an abundant number, since it is smaller than the sum of its proper divisors (799758100).

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

682145540 is a wasteful number, since it uses less digits than its factorization.

682145540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176151 (or 1176149 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 682145540 is about 26117.9160730714. The cubic root of 682145540 is about 880.2898236147.

The spelling of 682145540 in words is "six hundred eighty-two million, one hundred forty-five thousand, five hundred forty".