208006620 has 48 divisors (see below), whose sum is σ = 583420320. Its totient is φ = 55373056.

The previous prime is 208006619. The next prime is 208006627. The reversal of 208006620 is 26600802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208006627) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36526 + ... + 41834.

It is an arithmetic number, because the mean of its divisors is an integer number (12154590).

Almost surely, 2^208006620 is an apocalyptic number.

208006620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208006620 is an abundant number, since it is smaller than the sum of its proper divisors (375413700).

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

208006620 is a wasteful number, since it uses less digits than its factorization.

208006620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974 (or 5972 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 208006620 is about 14422.4346072360. The cubic root of 208006620 is about 592.5054994238.

The spelling of 208006620 in words is "two hundred eight million, six thousand, six hundred twenty".