168436 has 12 divisors (see below), whose sum is σ = 312228. Its totient is φ = 79232.

The previous prime is 168433. The next prime is 168449. The reversal of 168436 is 634861.

168436 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 108900 + 59536 = 330^2 + 244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168433) 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, 1171 + ... + 1306.

It is an arithmetic number, because the mean of its divisors is an integer number (26019).

2¹⁶⁸⁴³⁶ is an apocalyptic number.

It is an amenable number.

168436 is a deficient number, since it is larger than the sum of its proper divisors (143792).

168436 is a wasteful number, since it uses less digits than its factorization.

168436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2496 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 168436 is about 410.4095515458. The cubic root of 168436 is about 55.2261760611.

The spelling of 168436 in words is "one hundred sixty-eight thousand, four hundred thirty-six".