168864450 has 24 divisors (see below), whose sum is σ = 418784208. Its totient is φ = 45030480.

The previous prime is 168864401. The next prime is 168864461. The reversal of 168864450 is 54468861.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562732 + ... + 563031.

It is an arithmetic number, because the mean of its divisors is an integer number (17449342).

Almost surely, 2^168864450 is an apocalyptic number.

168864450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168864450 is an abundant number, since it is smaller than the sum of its proper divisors (249919758).

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

168864450 is a wasteful number, since it uses less digits than its factorization.

168864450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125778 (or 1125773 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 168864450 is about 12994.7854926505. The cubic root of 168864450 is about 552.7296261648.

The spelling of 168864450 in words is "one hundred sixty-eight million, eight hundred sixty-four thousand, four hundred fifty".