206806488 has 128 divisors (see below), whose sum is σ = 631910400. Its totient is φ = 55085184.

The previous prime is 206806459. The next prime is 206806499. The reversal of 206806488 is 884608602.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213381 + ... + 214347.

It is an arithmetic number, because the mean of its divisors is an integer number (4936800).

Almost surely, 2^206806488 is an apocalyptic number.

206806488 is a gapful number since it is divisible by the number (28) 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 206806488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315955200).

206806488 is an abundant number, since it is smaller than the sum of its proper divisors (425103912).

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

206806488 is a wasteful number, since it uses less digits than its factorization.

206806488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 206806488 is about 14380.7679906186. The cubic root of 206806488 is about 591.3637780877.

The spelling of 206806488 in words is "two hundred six million, eight hundred six thousand, four hundred eighty-eight".