208979020 has 12 divisors (see below), whose sum is σ = 438855984. Its totient is φ = 83591600.

The previous prime is 208978981. The next prime is 208979063. The reversal of 208979020 is 20979802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5224456 + ... + 5224495.

It is an arithmetic number, because the mean of its divisors is an integer number (36571332).

Almost surely, 2^208979020 is an apocalyptic number.

208979020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208979020 is an abundant number, since it is smaller than the sum of its proper divisors (229876964).

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

208979020 is a wasteful number, since it uses less digits than its factorization.

208979020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448960 (or 10448958 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 208979020 is about 14456.1066681178. The cubic root of 208979020 is about 593.4273560828.

The spelling of 208979020 in words is "two hundred eight million, nine hundred seventy-nine thousand, twenty".