168985320 has 192 divisors, whose sum is σ = 610675200. Its totient is φ = 37255680.

The previous prime is 168985237. The next prime is 168985337. The reversal of 168985320 is 23589861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170025 + ... + 171015.

It is an arithmetic number, because the mean of its divisors is an integer number (3180600).

Almost surely, 2^168985320 is an apocalyptic number.

168985320 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 168985320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305337600).

168985320 is an abundant number, since it is smaller than the sum of its proper divisors (441689880).

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

168985320 is a wasteful number, since it uses less digits than its factorization.

168985320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 168985320 is about 12999.4353723537. The cubic root of 168985320 is about 552.8614725386.

The spelling of 168985320 in words is "one hundred sixty-eight million, nine hundred eighty-five thousand, three hundred twenty".