682545408 has 72 divisors (see below), whose sum is σ = 1821743616. Its totient is φ = 226867200.

The previous prime is 682545397. The next prime is 682545419. The reversal of 682545408 is 804545286.

It is an interprime number because it is at equal distance from previous prime (682545397) and next prime (682545419).

It is a self number, because there is not a number n which added to its sum of digits gives 682545408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322273 + ... + 324383.

Almost surely, 2^682545408 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 682545408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910871808).

682545408 is an abundant number, since it is smaller than the sum of its proper divisors (1139198208).

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

682545408 is a wasteful number, since it uses less digits than its factorization.

682545408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 682545408 is about 26125.5700033511. The cubic root of 682545408 is about 880.4617961891.

The spelling of 682545408 in words is "six hundred eighty-two million, five hundred forty-five thousand, four hundred eight".