206042600 has 24 divisors (see below), whose sum is σ = 479049510. Its totient is φ = 82416960.

The previous prime is 206042597. The next prime is 206042609. The reversal of 206042600 is 6240602.

It can be written as a sum of positive squares in 3 ways, for example, as 143664196 + 62378404 = 11986^2 + 7898^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (206042609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514907 + ... + 515306.

Almost surely, 2^206042600 is an apocalyptic number.

206042600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206042600 is an abundant number, since it is smaller than the sum of its proper divisors (273006910).

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

206042600 is a wasteful number, since it uses less digits than its factorization.

206042600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030229 (or 1030220 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 206042600 is about 14354.1840590122. The cubic root of 206042600 is about 590.6347664091.

The spelling of 206042600 in words is "two hundred six million, forty-two thousand, six hundred".