168485900 has 72 divisors (see below), whose sum is σ = 403567920. Its totient is φ = 60544000.

The previous prime is 168485893. The next prime is 168485909. The reversal of 168485900 is 9584861.

It is not an unprimeable number, because it can be changed into a prime (168485909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97040 + ... + 98760.

It is an arithmetic number, because the mean of its divisors is an integer number (5605110).

Almost surely, 2^168485900 is an apocalyptic number.

168485900 is a gapful number since it is divisible by the number (10) 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 168485900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201783960).

168485900 is an abundant number, since it is smaller than the sum of its proper divisors (235082020).

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

168485900 is a wasteful number, since it uses less digits than its factorization.

168485900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 168485900 is about 12980.2118626777. The cubic root of 168485900 is about 552.3162919873.

The spelling of 168485900 in words is "one hundred sixty-eight million, four hundred eighty-five thousand, nine hundred".