169409330 has 8 divisors (see below), whose sum is σ = 304936812. Its totient is φ = 67763728.

The previous prime is 169409269. The next prime is 169409333. The reversal of 169409330 is 33904961.

169409330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 165045409 + 4363921 = 12847^2 + 2089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (169409333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8470457 + ... + 8470476.

Almost surely, 2^169409330 is an apocalyptic number.

169409330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169409330 is a deficient number, since it is larger than the sum of its proper divisors (135527482).

169409330 is a wasteful number, since it uses less digits than its factorization.

169409330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940940.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 169409330 is about 13015.7339401203. The cubic root of 169409330 is about 553.3234909783.

The spelling of 169409330 in words is "one hundred sixty-nine million, four hundred nine thousand, three hundred thirty".