169380469 has 8 divisors (see below), whose sum is σ = 182285208. Its totient is φ = 156802560.

The previous prime is 169380443. The next prime is 169380479. The reversal of 169380469 is 964083961.

It can be written as a sum of positive squares in 4 ways, for example, as 54612100 + 114768369 = 7390^2 + 10713^2 .

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

It is not a de Polignac number, because 169380469 - 2⁵ = 169380437 is a prime.

It is a super-2 number, since 2×169380469² = 57379486557319922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169380479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80632 + ... + 82705.

It is an arithmetic number, because the mean of its divisors is an integer number (22785651).

Almost surely, 2^169380469 is an apocalyptic number.

It is an amenable number.

169380469 is a deficient number, since it is larger than the sum of its proper divisors (12904739).

169380469 is a wasteful number, since it uses less digits than its factorization.

169380469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163415.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 169380469 is about 13014.6251962936. The cubic root of 169380469 is about 553.2920673327.

The spelling of 169380469 in words is "one hundred sixty-nine million, three hundred eighty thousand, four hundred sixty-nine".