208069056 has 168 divisors, whose sum is σ = 660505664. Its totient is φ = 62208000.

The previous prime is 208069051. The next prime is 208069139. The reversal of 208069056 is 650960802.

It is a super-2 number, since 2×208069056² = 86585464129462272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 208069056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208069051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276681 + ... + 277431.

Almost surely, 2^208069056 is an apocalyptic number.

208069056 is a gapful number since it is divisible by the number (26) 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 208069056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330252832).

208069056 is an abundant number, since it is smaller than the sum of its proper divisors (452436608).

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

208069056 is a wasteful number, since it uses less digits than its factorization.

208069056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 208069056 is about 14424.5989892267. The cubic root of 208069056 is about 592.5647763394.

The spelling of 208069056 in words is "two hundred eight million, sixty-nine thousand, fifty-six".