682243812 has 18 divisors (see below), whose sum is σ = 1724560838. Its totient is φ = 227414592.

The previous prime is 682243801. The next prime is 682243819. The reversal of 682243812 is 218342286.

It can be written as a sum of positive squares in only one way, i.e., 541679076 + 140564736 = 23274^2 + 11856^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 18951217 = 682243812 / (6 + 8 + 2 + 2 + 4 + 3 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (682243819) 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, 9475573 + ... + 9475644.

Almost surely, 2^682243812 is an apocalyptic number.

It is an amenable number.

682243812 is an abundant number, since it is smaller than the sum of its proper divisors (1042317026).

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

682243812 is a wasteful number, since it uses less digits than its factorization.

682243812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18951227 (or 18951222 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 682243812 is about 26119.7973192749. The cubic root of 682243812 is about 880.3320940114.

The spelling of 682243812 in words is "six hundred eighty-two million, two hundred forty-three thousand, eight hundred twelve".