206569140 has 48 divisors (see below), whose sum is σ = 608838720. Its totient is φ = 52185600.

The previous prime is 206569127. The next prime is 206569157. The reversal of 206569140 is 41965602.

206569140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89461 + ... + 91740.

It is an arithmetic number, because the mean of its divisors is an integer number (12684140).

Almost surely, 2^206569140 is an apocalyptic number.

206569140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206569140 is an abundant number, since it is smaller than the sum of its proper divisors (402269580).

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

206569140 is a wasteful number, since it uses less digits than its factorization.

206569140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181232 (or 181230 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 206569140 is about 14372.5133501417. The cubic root of 206569140 is about 591.1374590436.

The spelling of 206569140 in words is "two hundred six million, five hundred sixty-nine thousand, one hundred forty".