208633842 has 12 divisors (see below), whose sum is σ = 452040030. Its totient is φ = 69544608.

The previous prime is 208633793. The next prime is 208633849. The reversal of 208633842 is 248336802.

It can be written as a sum of positive squares in only one way, i.e., 124746561 + 83887281 = 11169^2 + 9159^2 .

It is a junction number, because it is equal to n+sod(n) for n = 208633797 and 208633806.

It is not an unprimeable number, because it can be changed into a prime (208633849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5795367 + ... + 5795402.

Almost surely, 2^208633842 is an apocalyptic number.

208633842 is an abundant number, since it is smaller than the sum of its proper divisors (243406188).

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

208633842 is a wasteful number, since it uses less digits than its factorization.

208633842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11590777 (or 11590774 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 208633842 is about 14444.1629040938. The cubic root of 208633842 is about 593.1004477470.

The spelling of 208633842 in words is "two hundred eight million, six hundred thirty-three thousand, eight hundred forty-two".