206670000 has 150 divisors (see below), whose sum is σ = 675293212. Its totient is φ = 54448000.

The previous prime is 206669989. The next prime is 206670007. The reversal of 206670000 is 76602.

It is a tau number, because it is divible by the number of its divisors (150).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (206670007) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2489959 + ... + 2490041.

Almost surely, 2^206670000 is an apocalyptic number.

206670000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206670000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337646606).

206670000 is an abundant number, since it is smaller than the sum of its proper divisors (468623212).

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

206670000 is an frugal number, since it uses more digits than its factorization.

206670000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 206670000 is about 14376.0217028217. The cubic root of 206670000 is about 591.2336535074.

The spelling of 206670000 in words is "two hundred six million, six hundred seventy thousand".