168869340 has 192 divisors, whose sum is σ = 561792000. Its totient is φ = 41990400.

The previous prime is 168869339. The next prime is 168869353. The reversal of 168869340 is 43968861.

168869340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1118265 + ... + 1118415.

It is an arithmetic number, because the mean of its divisors is an integer number (2926000).

Almost surely, 2^168869340 is an apocalyptic number.

168869340 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 168869340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280896000).

168869340 is an abundant number, since it is smaller than the sum of its proper divisors (392922660).

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

168869340 is a wasteful number, since it uses less digits than its factorization.

168869340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 168869340 is about 12994.9736436824. The cubic root of 168869340 is about 552.7349614536.

The spelling of 168869340 in words is "one hundred sixty-eight million, eight hundred sixty-nine thousand, three hundred forty".