206602140 has 24 divisors (see below), whose sum is σ = 578486160. Its totient is φ = 55093888.

The previous prime is 206602111. The next prime is 206602147. The reversal of 206602140 is 41206602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206602147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721625 + ... + 1721744.

It is an arithmetic number, because the mean of its divisors is an integer number (24103590).

Almost surely, 2^206602140 is an apocalyptic number.

206602140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206602140 is an abundant number, since it is smaller than the sum of its proper divisors (371884020).

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

206602140 is a wasteful number, since it uses less digits than its factorization.

206602140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443381 (or 3443379 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 206602140 is about 14373.6613289725. The cubic root of 206602140 is about 591.1689359903.

Adding to 206602140 its reverse (41206602), we get a palindrome (247808742).

The spelling of 206602140 in words is "two hundred six million, six hundred two thousand, one hundred forty".