169081344 has 160 divisors (see below), whose sum is σ = 510026880. Its totient is φ = 55987200.

The previous prime is 169081333. The next prime is 169081369. The reversal of 169081344 is 443180961.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 169081299 and 169081308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119669 + ... + 1119819.

It is an arithmetic number, because the mean of its divisors is an integer number (3187668).

Almost surely, 2^169081344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169081344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255013440).

169081344 is an abundant number, since it is smaller than the sum of its proper divisors (340945536).

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

169081344 is an frugal number, since it uses more digits than its factorization.

169081344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 169081344 is about 13003.1282390046. The cubic root of 169081344 is about 552.9661718061.

The spelling of 169081344 in words is "one hundred sixty-nine million, eighty-one thousand, three hundred forty-four".