206582740 has 96 divisors (see below), whose sum is σ = 537384960. Its totient is φ = 64958976.

The previous prime is 206582731. The next prime is 206582741. The reversal of 206582740 is 47285602.

It is a junction number, because it is equal to n+sod(n) for n = 206582696 and 206582705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206582741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405606 + ... + 406114.

It is an arithmetic number, because the mean of its divisors is an integer number (5597760).

Almost surely, 2^206582740 is an apocalyptic number.

206582740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206582740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268692480).

206582740 is an abundant number, since it is smaller than the sum of its proper divisors (330802220).

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

206582740 is a wasteful number, since it uses less digits than its factorization.

206582740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 206582740 is about 14372.9864676761. The cubic root of 206582740 is about 591.1504317671.

The spelling of 206582740 in words is "two hundred six million, five hundred eighty-two thousand, seven hundred forty".