208557342 has 80 divisors (see below), whose sum is σ = 536624352. Its totient is φ = 59304960.

The previous prime is 208557341. The next prime is 208557383. The reversal of 208557342 is 243755802.

208557342 is a `hidden beast` number, since 2 + 0 + 85 + 573 + 4 + 2 = 666.

208557342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×208557342³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 208557297 and 208557306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208557341) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 400042 + ... + 400562.

Almost surely, 2^208557342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208557342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268312176).

208557342 is an abundant number, since it is smaller than the sum of its proper divisors (328067010).

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

208557342 is a wasteful number, since it uses less digits than its factorization.

208557342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 208557342 is about 14441.5145327628. The cubic root of 208557342 is about 593.0279479542.

The spelling of 208557342 in words is "two hundred eight million, five hundred fifty-seven thousand, three hundred forty-two".