206407020 has 48 divisors (see below), whose sum is σ = 584448480. Its totient is φ = 54422016.

The previous prime is 206407001. The next prime is 206407031. The reversal of 206407020 is 20704602.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13987 + ... + 24666.

It is an arithmetic number, because the mean of its divisors is an integer number (12176010).

Almost surely, 2^206407020 is an apocalyptic number.

206407020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206407020 is an abundant number, since it is smaller than the sum of its proper divisors (378041460).

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

206407020 is a wasteful number, since it uses less digits than its factorization.

206407020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38754 (or 38752 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 206407020 is about 14366.8723109799. The cubic root of 206407020 is about 590.9827726805.

The spelling of 206407020 in words is "two hundred six million, four hundred seven thousand, twenty".