682400238 has 128 divisors (see below), whose sum is σ = 1612154880. Its totient is φ = 190771200.

The previous prime is 682400237. The next prime is 682400261. The reversal of 682400238 is 832004286.

It is a super-4 number, since 4×682400238⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 682400199 and 682400208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682400231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6756388 + ... + 6756488.

It is an arithmetic number, because the mean of its divisors is an integer number (12594960).

Almost surely, 2^682400238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 682400238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806077440).

682400238 is an abundant number, since it is smaller than the sum of its proper divisors (929754642).

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

682400238 is a wasteful number, since it uses less digits than its factorization.

682400238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 682400238 is about 26122.7915430185. The cubic root of 682400238 is about 880.3993702072.

The spelling of 682400238 in words is "six hundred eighty-two million, four hundred thousand, two hundred thirty-eight".