169213968 has 160 divisors (see below), whose sum is σ = 605675520. Its totient is φ = 43943040.

The previous prime is 169213963. The next prime is 169213969. The reversal of 169213968 is 869312961.

It is a happy number.

169213968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (169213963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30721 + ... + 35807.

It is an arithmetic number, because the mean of its divisors is an integer number (3785472).

Almost surely, 2^169213968 is an apocalyptic number.

169213968 is a gapful number since it is divisible by the number (18) 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 169213968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302837760).

169213968 is an abundant number, since it is smaller than the sum of its proper divisors (436461552).

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

169213968 is a wasteful number, since it uses less digits than its factorization.

169213968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122 (or 5110 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 169213968 is about 13008.2269352898. The cubic root of 169213968 is about 553.1107125295.

The spelling of 169213968 in words is "one hundred sixty-nine million, two hundred thirteen thousand, nine hundred sixty-eight".