168820338 has 16 divisors (see below), whose sum is σ = 340300800. Its totient is φ = 55830096.

The previous prime is 168820313. The next prime is 168820343. The reversal of 168820338 is 833028861.

It is a junction number, because it is equal to n+sod(n) for n = 168820296 and 168820305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110013 + ... + 111536.

It is an arithmetic number, because the mean of its divisors is an integer number (21268800).

Almost surely, 2^168820338 is an apocalyptic number.

168820338 is an abundant number, since it is smaller than the sum of its proper divisors (171480462).

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

168820338 is a wasteful number, since it uses less digits than its factorization.

168820338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221681.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 168820338 is about 12993.0880855938. The cubic root of 168820338 is about 552.6814926221.

The spelling of 168820338 in words is "one hundred sixty-eight million, eight hundred twenty thousand, three hundred thirty-eight".