208470016 has 34 divisors (see below), whose sum is σ = 417067922. Its totient is φ = 104202240.

The previous prime is 208470013. The next prime is 208470029. The reversal of 208470016 is 610074802.

It can be written as a sum of positive squares in only one way, i.e., 132710400 + 75759616 = 11520^2 + 8704^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208470011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63946 + ... + 67126.

Almost surely, 2^208470016 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 208470016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208533961).

208470016 is an abundant number, since it is smaller than the sum of its proper divisors (208597906).

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

208470016 is an frugal number, since it uses more digits than its factorization.

208470016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213 (or 3183 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 208470016 is about 14438.4907798565. The cubic root of 208470016 is about 592.9451665830.

The spelling of 208470016 in words is "two hundred eight million, four hundred seventy thousand, sixteen".