208980486 has 192 divisors, whose sum is σ = 575318016. Its totient is φ = 55987200.

The previous prime is 208980481. The next prime is 208980509. The reversal of 208980486 is 684089802.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208980481) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2154390 + ... + 2154486.

It is an arithmetic number, because the mean of its divisors is an integer number (2996448).

Almost surely, 2^208980486 is an apocalyptic number.

208980486 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 208980486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287659008).

208980486 is an abundant number, since it is smaller than the sum of its proper divisors (366337530).

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

208980486 is a wasteful number, since it uses less digits than its factorization.

208980486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 208980486 is about 14456.1573732441. The cubic root of 208980486 is about 593.4287437220.

The spelling of 208980486 in words is "two hundred eight million, nine hundred eighty thousand, four hundred eighty-six".