168920200 has 24 divisors (see below), whose sum is σ = 392739930. Its totient is φ = 67568000.

The previous prime is 168920161. The next prime is 168920237. The reversal of 168920200 is 2029861.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 90668484 + 78251716 = 9522^2 + 8846^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422101 + ... + 422500.

Almost surely, 2^168920200 is an apocalyptic number.

168920200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168920200 is an abundant number, since it is smaller than the sum of its proper divisors (223819730).

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

168920200 is a wasteful number, since it uses less digits than its factorization.

168920200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844617 (or 844608 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 168920200 is about 12996.9304068307. The cubic root of 168920200 is about 552.7904467148.

The spelling of 168920200 in words is "one hundred sixty-eight million, nine hundred twenty thousand, two hundred".