169385242 has 8 divisors (see below), whose sum is σ = 273622356. Its totient is φ = 78177792.

The previous prime is 169385221. The next prime is 169385257. The reversal of 169385242 is 242583961.

It can be written as a sum of positive squares in 2 ways, for example, as 168194961 + 1190281 = 12969^2 + 1091^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 169385195 and 169385204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3257383 + ... + 3257434.

Almost surely, 2^169385242 is an apocalyptic number.

169385242 is a deficient number, since it is larger than the sum of its proper divisors (104237114).

169385242 is a wasteful number, since it uses less digits than its factorization.

169385242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6514832.

The product of its digits is 103680, while the sum is 40.

The square root of 169385242 is about 13014.8085656302. The cubic root of 169385242 is about 553.2972643865.

The spelling of 169385242 in words is "one hundred sixty-nine million, three hundred eighty-five thousand, two hundred forty-two".