206837980 has 24 divisors (see below), whose sum is σ = 459911088. Its totient is φ = 77868288.

The previous prime is 206837957. The next prime is 206838019. The reversal of 206837980 is 89738602.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303834 + ... + 304513.

It is an arithmetic number, because the mean of its divisors is an integer number (19162962).

Almost surely, 2^206837980 is an apocalyptic number.

206837980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206837980 is an abundant number, since it is smaller than the sum of its proper divisors (253073108).

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

206837980 is a wasteful number, since it uses less digits than its factorization.

206837980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608373 (or 608371 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 206837980 is about 14381.8628835071. The cubic root of 206837980 is about 591.3937937207.

The spelling of 206837980 in words is "two hundred six million, eight hundred thirty-seven thousand, nine hundred eighty".