208982790 has 24 divisors (see below), whose sum is σ = 543355488. Its totient is φ = 55728720.

The previous prime is 208982773. The next prime is 208982797. The reversal of 208982790 is 97289802.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208982797) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1160926 + ... + 1161105.

It is an arithmetic number, because the mean of its divisors is an integer number (22639812).

Almost surely, 2^208982790 is an apocalyptic number.

208982790 is an abundant number, since it is smaller than the sum of its proper divisors (334372698).

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

208982790 is a wasteful number, since it uses less digits than its factorization.

208982790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322044 (or 2322041 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 208982790 is about 14456.2370622510. The cubic root of 208982790 is about 593.4309245553.

The spelling of 208982790 in words is "two hundred eight million, nine hundred eighty-two thousand, seven hundred ninety".