169406 has 8 divisors (see below), whose sum is σ = 257904. Its totient is φ = 83440.

The previous prime is 169399. The next prime is 169409. The reversal of 169406 is 604961.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169409) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 455 + ... + 738.

It is an arithmetic number, because the mean of its divisors is an integer number (32238).

2¹⁶⁹⁴⁰⁶ is an apocalyptic number.

169406 is a deficient number, since it is larger than the sum of its proper divisors (88498).

169406 is a wasteful number, since it uses less digits than its factorization.

169406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 169406 is about 411.5896014236. The cubic root of 169406 is about 55.3319865481.

It can be divided in two parts, 169 and 406, that added together give a palindrome (575).

The spelling of 169406 in words is "one hundred sixty-nine thousand, four hundred six".