168943900 has 36 divisors (see below), whose sum is σ = 371646352. Its totient is φ = 66648960.

The previous prime is 168943891. The next prime is 168943919. The reversal of 168943900 is 9349861.

168943900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4272 + ... + 18871.

Almost surely, 2^168943900 is an apocalyptic number.

168943900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168943900 is an abundant number, since it is smaller than the sum of its proper divisors (202702452).

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

168943900 is a wasteful number, since it uses less digits than its factorization.

168943900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23230 (or 23223 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 168943900 is about 12997.8421285997. The cubic root of 168943900 is about 552.8162982134.

The spelling of 168943900 in words is "one hundred sixty-eight million, nine hundred forty-three thousand, nine hundred".