206481888 has 36 divisors (see below), whose sum is σ = 587183688. Its totient is φ = 68827200.

The previous prime is 206481817. The next prime is 206481923. The reversal of 206481888 is 888184602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358188 + ... + 358763.

It is an arithmetic number, because the mean of its divisors is an integer number (16310658).

Almost surely, 2^206481888 is an apocalyptic number.

It is an amenable number.

206481888 is an abundant number, since it is smaller than the sum of its proper divisors (380701800).

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

206481888 is a wasteful number, since it uses less digits than its factorization.

206481888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716967 (or 716956 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 206481888 is about 14369.4776523018. The cubic root of 206481888 is about 591.0542178437.

The spelling of 206481888 in words is "two hundred six million, four hundred eighty-one thousand, eight hundred eighty-eight".