208849542 has 32 divisors (see below), whose sum is σ = 470375424. Its totient is φ = 61245600.

The previous prime is 208849541. The next prime is 208849549. The reversal of 208849542 is 245948802.

It is a junction number, because it is equal to n+sod(n) for n = 208849494 and 208849503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208849541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48993 + ... + 53084.

It is an arithmetic number, because the mean of its divisors is an integer number (14699232).

Almost surely, 2^208849542 is an apocalyptic number.

208849542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

208849542 is an abundant number, since it is smaller than the sum of its proper divisors (261525882).

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

208849542 is a wasteful number, since it uses less digits than its factorization.

208849542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102124.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 208849542 is about 14451.6276591947. The cubic root of 208849542 is about 593.3047733451.

The spelling of 208849542 in words is "two hundred eight million, eight hundred forty-nine thousand, five hundred forty-two".