206493156 has 72 divisors (see below), whose sum is σ = 534643200. Its totient is φ = 67177920.

The previous prime is 206493109. The next prime is 206493163. The reversal of 206493156 is 651394602.

It is a happy number.

206493156 is a `hidden beast` number, since 2 + 0 + 649 + 3 + 1 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 206493156.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405430 + ... + 405938.

It is an arithmetic number, because the mean of its divisors is an integer number (7425600).

Almost surely, 2^206493156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206493156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267321600).

206493156 is an abundant number, since it is smaller than the sum of its proper divisors (328150044).

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

206493156 is a wasteful number, since it uses less digits than its factorization.

206493156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 206493156 is about 14369.8697280108. The cubic root of 206493156 is about 591.0649691947.

The spelling of 206493156 in words is "two hundred six million, four hundred ninety-three thousand, one hundred fifty-six".