206746064 has 40 divisors (see below), whose sum is σ = 468452160. Its totient is φ = 86542848.

The previous prime is 206746063. The next prime is 206746069. The reversal of 206746064 is 460647602.

It is a happy number.

206746064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206746063) 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, 16649 + ... + 26280.

It is an arithmetic number, because the mean of its divisors is an integer number (11711304).

Almost surely, 2^206746064 is an apocalyptic number.

It is an amenable number.

206746064 is an abundant number, since it is smaller than the sum of its proper divisors (261706096).

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

206746064 is a wasteful number, since it uses less digits than its factorization.

206746064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42987 (or 42981 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 206746064 is about 14378.6669757666. Note that the first 3 decimals coincide. The cubic root of 206746064 is about 591.3061782740.

The spelling of 206746064 in words is "two hundred six million, seven hundred forty-six thousand, sixty-four".