169039368 has 48 divisors (see below), whose sum is σ = 461183580. Its totient is φ = 55931904.

The previous prime is 169039363. The next prime is 169039399. The reversal of 169039368 is 863930961.

It can be written as a sum of positive squares in 2 ways, for example, as 153214884 + 15824484 = 12378^2 + 3978^2 .

It is not an unprimeable number, because it can be changed into a prime (169039363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1296 + ... + 18432.

Almost surely, 2^169039368 is an apocalyptic number.

169039368 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 169039368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230591790).

169039368 is an abundant number, since it is smaller than the sum of its proper divisors (292144212).

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

169039368 is a wasteful number, since it uses less digits than its factorization.

169039368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17286 (or 17279 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 169039368 is about 13001.5140656771. The cubic root of 169039368 is about 552.9204083715.

The spelling of 169039368 in words is "one hundred sixty-nine million, thirty-nine thousand, three hundred sixty-eight".