208164424 has 16 divisors (see below), whose sum is σ = 420332220. Its totient is φ = 96075840.

The previous prime is 208164413. The next prime is 208164427. The reversal of 208164424 is 424461802.

It can be written as a sum of positive squares in 2 ways, for example, as 206841924 + 1322500 = 14382^2 + 1150^2 .

It is not an unprimeable number, because it can be changed into a prime (208164427) 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 3 ways as a sum of consecutive naturals, for example, 1000687 + ... + 1000894.

Almost surely, 2^208164424 is an apocalyptic number.

It is an amenable number.

208164424 is an abundant number, since it is smaller than the sum of its proper divisors (212167796).

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

208164424 is a wasteful number, since it uses less digits than its factorization.

208164424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001600 (or 2001596 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 208164424 is about 14427.9043523306. The cubic root of 208164424 is about 592.6552961038.

The spelling of 208164424 in words is "two hundred eight million, one hundred sixty-four thousand, four hundred twenty-four".