206068140 has 36 divisors (see below), whose sum is σ = 625073904. Its totient is φ = 54951456.

The previous prime is 206068099. The next prime is 206068153. The reversal of 206068140 is 41860602.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 572232 + ... + 572591.

It is an arithmetic number, because the mean of its divisors is an integer number (17363164).

Almost surely, 2^206068140 is an apocalyptic number.

206068140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206068140 is an abundant number, since it is smaller than the sum of its proper divisors (419005764).

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

206068140 is a wasteful number, since it uses less digits than its factorization.

206068140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144838 (or 1144833 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 206068140 is about 14355.0736675226. The cubic root of 206068140 is about 590.6591694349.

The spelling of 206068140 in words is "two hundred six million, sixty-eight thousand, one hundred forty".