208936842 has 16 divisors (see below), whose sum is σ = 419856672. Its totient is φ = 69315120.

The previous prime is 208936837. The next prime is 208936843. The reversal of 208936842 is 248639802.

208936842 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 = 208936794 and 208936803.

It is not an unprimeable number, because it can be changed into a prime (208936843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81253 + ... + 83784.

It is an arithmetic number, because the mean of its divisors is an integer number (26241042).

Almost surely, 2^208936842 is an apocalyptic number.

208936842 is an abundant number, since it is smaller than the sum of its proper divisors (210919830).

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

208936842 is a wasteful number, since it uses less digits than its factorization.

208936842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165253.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 208936842 is about 14454.6477646465. The cubic root of 208936842 is about 593.3874298051.

The spelling of 208936842 in words is "two hundred eight million, nine hundred thirty-six thousand, eight hundred forty-two".