208980988 has 24 divisors (see below), whose sum is σ = 374939712. Its totient is φ = 101872704.

The previous prime is 208980929. The next prime is 208980997. The reversal of 208980988 is 889089802.

It is a super-2 number, since 2×208980988² = 87346106690912288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50070 + ... + 54082.

It is an arithmetic number, because the mean of its divisors is an integer number (15622488).

Almost surely, 2^208980988 is an apocalyptic number.

It is an amenable number.

208980988 is a deficient number, since it is larger than the sum of its proper divisors (165958724).

208980988 is a wasteful number, since it uses less digits than its factorization.

208980988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 208980988 is about 14456.1747360773. The cubic root of 208980988 is about 593.4292188876.

The spelling of 208980988 in words is "two hundred eight million, nine hundred eighty thousand, nine hundred eighty-eight".