682173018 has 12 divisors (see below), whose sum is σ = 1478041578. Its totient is φ = 227391000.

The previous prime is 682173013. The next prime is 682173049. The reversal of 682173018 is 810371286.

It can be written as a sum of positive squares in only one way, i.e., 665794809 + 16378209 = 25803^2 + 4047^2 .

It is not an unprimeable number, because it can be changed into a prime (682173013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18949233 + ... + 18949268.

Almost surely, 2^682173018 is an apocalyptic number.

682173018 is an abundant number, since it is smaller than the sum of its proper divisors (795868560).

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

682173018 is a wasteful number, since it uses less digits than its factorization.

682173018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37898509 (or 37898506 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 682173018 is about 26118.4421051486. The cubic root of 682173018 is about 880.3016433206.

The spelling of 682173018 in words is "six hundred eighty-two million, one hundred seventy-three thousand, eighteen".