206678912 has 64 divisors (see below), whose sum is σ = 451839600. Its totient is φ = 93388800.

The previous prime is 206678863. The next prime is 206678917. The reversal of 206678912 is 219876602.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 206678912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206678917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322112 + ... + 322752.

Almost surely, 2^206678912 is an apocalyptic number.

206678912 is a gapful number since it is divisible by the number (22) 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 206678912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225919800).

206678912 is an abundant number, since it is smaller than the sum of its proper divisors (245160688).

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

206678912 is a wasteful number, since it uses less digits than its factorization.

206678912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 206678912 is about 14376.3316600585. The cubic root of 206678912 is about 591.2421517551.

The spelling of 206678912 in words is "two hundred six million, six hundred seventy-eight thousand, nine hundred twelve".