208055634 has 32 divisors (see below), whose sum is σ = 425222784. Its totient is φ = 67841280.

The previous prime is 208055633. The next prime is 208055647. The reversal of 208055634 is 436550802.

208055634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 208055595 and 208055604.

It is not an unprimeable number, because it can be changed into a prime (208055633) 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, 136939 + ... + 138449.

It is an arithmetic number, because the mean of its divisors is an integer number (13288212).

Almost surely, 2^208055634 is an apocalyptic number.

208055634 is an abundant number, since it is smaller than the sum of its proper divisors (217167150).

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

208055634 is a wasteful number, since it uses less digits than its factorization.

208055634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 208055634 is about 14424.1337348210. The cubic root of 208055634 is about 592.5520344552.

The spelling of 208055634 in words is "two hundred eight million, fifty-five thousand, six hundred thirty-four".