208810830 has 32 divisors (see below), whose sum is σ = 530626464. Its totient is φ = 52407296.

The previous prime is 208810829. The next prime is 208810841. The reversal of 208810830 is 38018802.

208810830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204207 + ... + 205226.

It is an arithmetic number, because the mean of its divisors is an integer number (16582077).

Almost surely, 2^208810830 is an apocalyptic number.

208810830 is an abundant number, since it is smaller than the sum of its proper divisors (321815634).

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

208810830 is a wasteful number, since it uses less digits than its factorization.

208810830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409460.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 208810830 is about 14450.2882324194. The cubic root of 208810830 is about 593.2681130881.

The spelling of 208810830 in words is "two hundred eight million, eight hundred ten thousand, eight hundred thirty".