169426 has 4 divisors (see below), whose sum is σ = 254142. Its totient is φ = 84712.

The previous prime is 169409. The next prime is 169427. The reversal of 169426 is 624961.

169426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123201 + 46225 = 351^2 + 215^2 .

It is a junction number, because it is equal to n+sod(n) for n = 169394 and 169403.

It is not an unprimeable number, because it can be changed into a prime (169427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42355 + ... + 42358.

2¹⁶⁹⁴²⁶ is an apocalyptic number.

169426 is a deficient number, since it is larger than the sum of its proper divisors (84716).

169426 is an equidigital number, since it uses as much as digits as its factorization.

169426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84715.

The product of its digits is 2592, while the sum is 28.

The square root of 169426 is about 411.6138967528. The cubic root of 169426 is about 55.3341639526.

Subtracting 169426 from its reverse (624961), we obtain a triangular number (455535 = T₉₅₄).

It can be divided in two parts, 1694 and 26, that multiplied together give a palindrome (44044).

The spelling of 169426 in words is "one hundred sixty-nine thousand, four hundred twenty-six".