206731960 has 32 divisors (see below), whose sum is σ = 475968240. Its totient is φ = 80769024.

The previous prime is 206731937. The next prime is 206731961. The reversal of 206731960 is 69137602.

206731960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206731961) 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, 58377 + ... + 61816.

Almost surely, 2^206731960 is an apocalyptic number.

206731960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206731960 is an abundant number, since it is smaller than the sum of its proper divisors (269236280).

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

206731960 is a wasteful number, since it uses less digits than its factorization.

206731960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120247 (or 120243 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 206731960 is about 14378.1765185993. The cubic root of 206731960 is about 591.2927318721.

The spelling of 206731960 in words is "two hundred six million, seven hundred thirty-one thousand, nine hundred sixty".