208425216 has 72 divisors (see below), whose sum is σ = 560415744. Its totient is φ = 68761600.

The previous prime is 208425209. The next prime is 208425221. The reversal of 208425216 is 612524802.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76225 + ... + 78911.

It is an arithmetic number, because the mean of its divisors is an integer number (7783552).

Almost surely, 2^208425216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280207872).

208425216 is an abundant number, since it is smaller than the sum of its proper divisors (351990528).

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

208425216 is a wasteful number, since it uses less digits than its factorization.

208425216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 208425216 is about 14436.9392878131. The cubic root of 208425216 is about 592.9026890970.

The spelling of 208425216 in words is "two hundred eight million, four hundred twenty-five thousand, two hundred sixteen".