168385504 has 48 divisors (see below), whose sum is σ = 379886976. Its totient is φ = 71971200.

The previous prime is 168385499. The next prime is 168385519. The reversal of 168385504 is 405583861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109219 + ... + 110749.

It is an arithmetic number, because the mean of its divisors is an integer number (7914312).

Almost surely, 2^168385504 is an apocalyptic number.

168385504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168385504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189943488).

168385504 is an abundant number, since it is smaller than the sum of its proper divisors (211501472).

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

168385504 is a wasteful number, since it uses less digits than its factorization.

168385504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 168385504 is about 12976.3440151685. The cubic root of 168385504 is about 552.2065669522.

The spelling of 168385504 in words is "one hundred sixty-eight million, three hundred eighty-five thousand, five hundred four".