208160764 has 48 divisors (see below), whose sum is σ = 444584448. Its totient is φ = 83337408.

The previous prime is 208160761. The next prime is 208160809. The reversal of 208160764 is 467061802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208160761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23934 + ... + 31450.

It is an arithmetic number, because the mean of its divisors is an integer number (9262176).

Almost surely, 2^208160764 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 208160764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222292224).

208160764 is an abundant number, since it is smaller than the sum of its proper divisors (236423684).

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

208160764 is a wasteful number, since it uses less digits than its factorization.

208160764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 208160764 is about 14427.7775142258. Note that the first 3 decimals coincide. The cubic root of 208160764 is about 592.6518226779.

The spelling of 208160764 in words is "two hundred eight million, one hundred sixty thousand, seven hundred sixty-four".