208242912 has 48 divisors (see below), whose sum is σ = 552802320. Its totient is φ = 68631552.

The previous prime is 208242887. The next prime is 208242917. The reversal of 208242912 is 219242802.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×208242912² = 86730220796479488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 208242912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208242917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3643 + ... + 20730.

It is an arithmetic number, because the mean of its divisors is an integer number (11516715).

Almost surely, 2^208242912 is an apocalyptic number.

It is an amenable number.

208242912 is an abundant number, since it is smaller than the sum of its proper divisors (344559408).

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

208242912 is a wasteful number, since it uses less digits than its factorization.

208242912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24475 (or 24467 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 208242912 is about 14430.6241029278. The cubic root of 208242912 is about 592.7297732613.

The spelling of 208242912 in words is "two hundred eight million, two hundred forty-two thousand, nine hundred twelve".