206140662 has 96 divisors (see below), whose sum is σ = 552831552. Its totient is φ = 54058752.

The previous prime is 206140609. The next prime is 206140663. The reversal of 206140662 is 266041602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206140663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 519048 + ... + 519444.

It is an arithmetic number, because the mean of its divisors is an integer number (5758662).

Almost surely, 2^206140662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206140662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276415776).

206140662 is an abundant number, since it is smaller than the sum of its proper divisors (346690890).

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

206140662 is a wasteful number, since it uses less digits than its factorization.

206140662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 206140662 is about 14357.5994511617. The cubic root of 206140662 is about 590.7284519551.

The spelling of 206140662 in words is "two hundred six million, one hundred forty thousand, six hundred sixty-two".