208050640 has 160 divisors (see below), whose sum is σ = 597818880. Its totient is φ = 65759232.

The previous prime is 208050581. The next prime is 208050649. The reversal of 208050640 is 46050802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208050649) 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 31 ways as a sum of consecutive naturals, for example, 373242 + ... + 373798.

It is an arithmetic number, because the mean of its divisors is an integer number (3736368).

Almost surely, 2^208050640 is an apocalyptic number.

208050640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208050640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298909440).

208050640 is an abundant number, since it is smaller than the sum of its proper divisors (389768240).

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

208050640 is a wasteful number, since it uses less digits than its factorization.

208050640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 208050640 is about 14423.9606211332. The cubic root of 208050640 is about 592.5472933699.

The spelling of 208050640 in words is "two hundred eight million, fifty thousand, six hundred forty".