168989760 has 112 divisors (see below), whose sum is σ = 596188800. Its totient is φ = 45061632.

The previous prime is 168989719. The next prime is 168989789. The reversal of 168989760 is 67989861.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 168989697 and 168989706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140 + ... + 18419.

Almost surely, 2^168989760 is an apocalyptic number.

168989760 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 168989760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298094400).

168989760 is an abundant number, since it is smaller than the sum of its proper divisors (427199040).

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

168989760 is a wasteful number, since it uses less digits than its factorization.

168989760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19585 (or 19569 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 168989760 is about 12999.6061478800. The cubic root of 168989760 is about 552.8663145439.

The spelling of 168989760 in words is "one hundred sixty-eight million, nine hundred eighty-nine thousand, seven hundred sixty".