206981030 has 8 divisors (see below), whose sum is σ = 372565872. Its totient is φ = 82792408.

The previous prime is 206981011. The next prime is 206981051. The reversal of 206981030 is 30189602.

206981030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×206981030² = 85682293559721800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206980984 and 206981002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10349042 + ... + 10349061.

It is an arithmetic number, because the mean of its divisors is an integer number (46570734).

Almost surely, 2^206981030 is an apocalyptic number.

206981030 is a deficient number, since it is larger than the sum of its proper divisors (165584842).

206981030 is a wasteful number, since it uses less digits than its factorization.

206981030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20698110.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 206981030 is about 14386.8353017611. The cubic root of 206981030 is about 591.5300990979.

The spelling of 206981030 in words is "two hundred six million, nine hundred eighty-one thousand, thirty".